I had a breakdown in December, I have severe mental health difficulties and I get some form of disability allowance. I've started seeing my partner indoors occasionally as of the New Year (which is technically illegal as neither of us are eligible for a support bubble) as quite frankly I need to at this point. For context, no one is vulnerable and the people I live with are all aware and happy. In general, our household contacts are very low as we all work from home currently.
I've now started going every other day as the longer lockdown goes on the shitter I feel, and now it's clear I won't legally be able to see my partner for months, I've become more aware of the possibility of a fine.
Is anyone else in this position? I'm seeing my partner under the provision that I have a disability and/or to avoid harm. But my disability is a mental disorder, not physical. And I feel like I can't use the "to avoid harm" unless I'm literally suicidal but the reality of my condition is that I'm much safer if I don't get to that stage. Also, I'm scared people are going to think I'm bullshitting or making it up 
I have a psychiatrist appointment letter, a copy of my disability allowance proof... Is this enough if I ever get fined for mixing households?
Thanks if anyone else is in this position