Hello, I’ll try and keep this as concise as possible.
I have a friend of about 6 years who has always been a good friend to me and supported me through a divorce, always remembers birthdays etc.
Her background is she is from ‘old money’ and while she always pleads poverty, she is a stay at home mother who thinks nothing of buying a designer handbag or having a new bathroom fitted but tells us how poor she is. We’ve always just accepted it’s her perspective as she doesn’t know any different, if that makes sense?
Anyway, for a few years now she’s been on antidepressants for anxiety. She’s tried several brands/types as she says none of them work. Fair enough.
The main thing my friend complains about constantly is she always says how she’s in pain. It tends to be her back or her side but never anything specific. She’s been to the doctors multiple times and is even paying privately for CT scans, MRI scans, endoscopes etc, all of which show nothing abnormal. Yet she insists the doctors are wrong.
She also has decided to self diagnose and says she ha multiple food allergies, not intolerances but allergies. These are to specific things like green peppers, lamb, lemons and dairy. As someone who has a food based qualification I tried to explain that if she had these allergies the signs would be different and actually not as specific as she’s making out but she just dismissed it so I didn’t push it.
I guess why I’m posting is because it’s not at a stage where she’s lost and is losing most of her friends because she’s obsessed with this situation. Every conversation, and I do mean every, comes down to her and these issues. Eg - I said the other day ‘shall we meet for coffee?’ And she launched into why she can’t have dairy etc. Another eg - a child of someone in the friendship group was admitted to hospital, her first reaction was ‘oh don’t worry, I’m back at hospital to have another test’ then continued to list her woes again.
We are all finding it incredibly draining, those of us who are left.
I don’t want to defriend her but I don’t know what the best approach is?
Her own husband has told her he finds her draining and boring 
I genuinely believe it’s all in her head as she has no physical signs.
Part of me thinks I should tell her straight but I don’t want to upset her and I’m no doctor.