Please can you help me decide what to do? Go back or leave.

[Daisydaisydaisy1]

I wasn’t sure where to post.
Im hoping to get some support here.
im a mental health nurse and been qualified about 10 yrs (uk).
it’s taken me 4 roles to find what i enjoy. I have noticed there is a bit of a culture in the nhs but over the years adapted to it whilst building my confidence.
I understand management are stuck in certain situations and dynamic of a team. Where I am, there are about 25 of us (different professions). Out of that many there are 7 who have worked together for years (including the manager). I am in the office with them all (not the manager). It was very hard to fit in but I persevered and thought I was ok. I’m going to cut a very long story short.
I noticed 2 colleagues very close and exclude people from conversations and interact together, like to gossip, sometimes the way they speak about others can feel uncomfortable. One nurse has a lot of time off and they all say this is ‘historic’. I can share particular things they say but it’s so long. I noticed they wouldn’t support me, talk over me, exclude me and they often spoke about conversations they have had with the manager. Such as ‘taking the colleague down the competency route’, ‘she’s playing the mental health card’, ‘she is not a team player’.
Have been managing a number of roles due to staff sickness. Aswell as managing health conditions and supporting my daughter with her mental health. I had some time off to recover (4 weeks). When I returned, one of the more dominant characters (who has previously said to me, I’m not challenged because I’m too nice and won’t ‘kick off’) approached me about covering something and I said I have just returned from burnout. She challenged me in a very aggressive tone. I was so taken back. She said I was not being a team player. I honestly couldn’t believe what was happening.
I probably am too sensitive but I don’t know what to do. I have panicked looking for another job. Or do I go back and face this?
There is a lot more to the dynamic but it’s a lot to explain and don’t want to bore you all. I’m just wondering if anyone else has had to manage this?

Approach your manager, if no help, approach HR. Do you have graded return to work plan in place? OH assessment?
Don't manage staff yourself, someone is being paid a lot more to do that. Access your workplace wellbeing services. Kick up a fuss. You are allowed.
I spent years working on wards with MH nurses and there are definitely some very problematic people entering the profession. I have never been shy to escalate things to management in toxic teams.
As to them gossiping and sidelining you, I honestly wouldn't pay any attention to that at all. Plenty of jobs to be getting on with instead of being sucked into office politics.

Thankyou. I have (she is partially involved with the small minority). I have been told management do not know how to manage these types of personalities.
i have had an occupational health appointment and she has said remain off until after my gynaecologist procedure and she will then support me with a back to work plan. My manager has asked for mediation with this particular colleague. I have spoke to wellbeing and on their waiting list.
I don’t think the culture will change. I don’t want to be pushed out either.