I work as a professor. So far, I have done ok mostly by trying to change my workload and so far my employer is pretty happy. I think it's taking a long-term toll on my career -- not doing stuff that I should be doing like networking and publishing because it's a huge effort just to keep it together. And of course it has totally changed how others see me, particularly when they don't know what my issue is.
I worry a great deal about being in too much pain to do something I absolutely need to be able to do (teach, give a talk, travel, make a presentation). I can do fine with opioids, but I don't always have enough at the end of the month and spend lots of time worrying about what's coming up on my work schedule. Right now I'm on a week-long work trip and I'm out of meds because out of town on my refill day. I don't get withdrawal symptoms, but if the pain gets really terrible when I'm on the road, it's so difficult.
Where I've gotten into serious problems is with medication side effects that are disabling for the work I do. For example, had severe memory issues with tegretol and could not make it through a single day of my job like that (no, I don't have anything like that with opioids). Then the discussion is about whether I need to change my job to be on that medication (which also doesn't do much for my pain). Not sure that's possible -- either I'm more sensitive to some of these side effects or they're just a big problem for the kind of job I do. But I suspect that it's a big problem for many kinds of jobs, and maybe some neurologists aren't sympathetic to it because they think only being a neurologist is the only hard/important. I'm generalizing because a lot of them are very, very kind, but it seems like some of them imagine that our jobs are much easier than they actually are.
I feel for people who don't have paid sick leave like I do. Really important to know and make use of your rights -- I would suggest NOT revealing your illness in job interviews, for example. You deserve to work and support your family, and this is the reason we have protections in the workplace, unions, etc.
Mac