Should I make a formal complaint?

[Tinklikescoffee]

Having a really bad time at work and thinking of leaving/going sick for a while. My only other colleague in office, also my LM is extremely rude, I could write a book! Today, I went in as normal asked if they had a good weekend and got "I'd prefer if we didn't talk about it" - slammed down keyboard and walked out of office. No "did you have a good weekend" or change the subject about something topical.
Other examples include:
Being asked if typing so quickly hurts my hands? Even though I'm a touch-typist and not a keyboard plonker.
Accused of eating a piece of fruit deliberately to annoy them as they were off for an endoscopy and couldn't eat that morning?
Sending me to meetings totally unprepared as they can't be bothered to go.
Bear in mind this person never dies a complete week in the office, leaving me to cover whilst showing virtually no respect.
Getting really hard to bite m tongue as this person is plain rude, is it time to make it a formal complaint as friends have said it could come under the heading 'bullying & harassment'?

Unless you have a disability or other protected characteristic, it would technically be bullying.

Have you documented a pattern of behaviour, over a period of time that you can put into the grievance document, as it will carry more weight if you have specific circumstances to create context, e.g. When it started, how long it's been going on for, and importantly a description of the effect of the person's behaviour on your health and work productivity.

Don't resort to anger or insults, only facts. Be the bigger person and don't stoop to their level.

Are you working for a membership organisation?

Thanks for the replies; I do have a disability daisy but not sure how this helps me?
Scary I'm not working for a membership organisation; work with the MOD/Civil Service, although I am not.
I really didn't want to go down the formal complaint route, but don't have much option?

My only point was that harassment is associated with having a protected characteristic such as a disability provided it is known officially in your company and you have means of proving that their treatment of you was directly associated with your Disability. It may or may not help but it's the way the law (Equality Act) has been constructed to protect people with certain potential disadvantages to be treated more equally.

If they have a grievance process, I would recommend you follow it, to get this matter resolved. Sounds awful for you to have to deal with.

Thanks again Daisy; feel very lonely and isolated as it’s not done in front of anyone else....quite typically bullying behaviour. The person is fully aware of my disability and has made these comments previously:

There’s no point you applying to the promotion as you wouldn’t be able to do the job due to your disability.

I know when it’s you coming up the stairs as you make a noise like you’re worn out - to this I responded, well my illness does my stairs difficult!

Have you spoken he her about how her behaviour is affecting you?

If possible could you speak to your LM's manager? Failing that, I would be going to see HR with everything documented and taking out a grievance. You need to do something before they totally destroy your self confidence and self-belief.