Feeling forced to leave a job I love...(long sorry)

[Englishgirlinwales22]

Hi
Im currently employed by the NHS in an admin role. I job share on a part time basis since returning from maternity leave last July and I feel that my job share counterpart and her cronies in the office have made it unviable for me to return.
To give some background- I was employed on a full time basis whilst my colleague was on ml and, when she returned, the other people in the office froze me out a little but I understood that they needed to make my colleague feel welcome back. There was a little bit of competition between us as we were doing the same job, but I felt that we worked well together. I then found out that I was pregnant and went off on ml sep 2012-july 2013.
The problems began really when I returned from ml on a part time basis so me and my colleague were effectively job sharing. The healthy competition we had before was replaced by my colleague (and the others in the office) acting as though she was senior to me and she started checking everything I did. There were also issues in the office with not enough desks for the people in the office so I found myself desk hopping which further undermined my position. My colleague and her friend in the office made it clear that I was no longer welcome in the office and I was frozen out of conversation and social events. My colleague then changed her hours without consulting me or our joint manager which meant that our hours overlapped even more and I was made to play second fiddle to her.
I got increasingly upset about this and informed my manager three weeks ago how I was feeling. She pulled me out of the office, confronted my colleague and the office staff and told them everything I said. My colleague and the others in the office all said that they didnt know why I would say these things and basically made out that I had made it all up. After a discussion with my manager it was agreed that I wouldnt go back in the office and, as my colleague refuses to admit there is an issue, I cant see me returning any time soon.
I am just really sad because, apart from the personal issues, I really loved my job and I know that I was good at it. I am also angry that they seem to have won and got what they wanted as I am out and she is now the senior secretary.
Any advice on how to take this forwards? At the moment I am just floating around, but I dont want tp do this forever...

Are they still paying you, are you working from home?
I suggest two things. Firstly, start actively looking for a new job. Secondly, look at the company's grievance procedure and then raise a formal grievance. Include you manager's handling of the situation in your grievance as it should trigger another manager being engaged to investigate. It will probably end with mediation in an attempt to resolve the situation.

Thanks for your reply. I am still in work, but moved to a new department to cover sick leave and it is with less responsibility. It doesnt help that my ex colleague is telling everyone who will listen that she is on top of all the work which makes it look as though I did nothing, but I sneaked intothe office yesterday and there is tons of work half finished or pending...
im worried about raising a grievance about my manager as she has been supportive in the main and she, although misguided, acted out of concern for the way I have been treated. I am also wary of raising a formal grievance again against my colleague as she is saying that I am making it up and I dont want to cause more trouble than I already have- the nhs is notoriously gossipy and people are already talking about the situation. I just wish I hadnt said anything and got on with things, but I definitely am not making it up. I dont know what to do.

If your manager is supportive in the main and acting out of concern, you need to speak to her again, and ask what the plan is with regard to dealing with this situation in order that you can get back to your job as normal.

I would raise a grievance,(just been there myself about ml etc) mention the situation but also say your manager mostly has been supportive but you feel it wasn't handled appropriately leaving you feeling unable to return due to being made out to be a liar and isolated. Mention that it is bullying behaviour. They cannot discuss it as its confidential and mention in your letter your worried about the consequences. If you don't say anything she may get away with doing this to someone else. I hope this helps.... the