Hi, I am only familiar with university life, as a student, then an employee, of what typically happens in the UK. I entered university life relatively late, as a student in my early to mid 30's, then an employee in my late 30's. By the time I was in my mid to late 40's I became increasingly unproductive, suffered more bad health, and was simply unable to function by the time I was 52/53 YOA!
There are many sources of help at most UK universities to help students and staff achieve a sustainable 'work-life balance' as they do not want to loose talented people, unnecessarily, through ill-health.
You seem to be in a position now where your balance has sung far to far in a negative direction. So, would you consider seeking help to create a more sustainable situation for yourself? UK universities have the likes of HR departments, Occupational Health specialists, Staff / Student Counseling therapists, Continuing Staff Development programmes that specialise in achieving staff a work-life balance ( often these are just a variety of short, and differing courses ) - as well as 'healthful' recreational activities such as sports, gym, sauna, yoga, pilates and so on that are good for you to get involved with! Are these the kinds of things you would be willing to seek out and try.
Has anyone sat down with you and asked " where do you want to be in 10, 15 and 20 years time " in terms of academic attainment, then, as a person in the world of work? What you need is someone who is emotionally detached from your life, to help you make some purely rational decisions on moving forward on what it is you truly want to achieve. Often, in a university, these people can be a therapist, an HR professional, or someone with an occupational health background, who fully understands what it is like for people in universities.
My suggestion would be, act on this now before you have even more intolerable health circumstances to contend with alongside, completing a PhD, and, thinking what it is in all-realms of life that may lie-ahead for you .....
- W.D.