What is the status of your tumor? Did the meds reduce the size of the tumor? When was your last MRI, and did you get a copy of the report?
Are you under the care of a neuro endocrinologist? I ask as you may need other hormones. Just because it was fine once, does not mean that it stays fine.
It can depend on where your tumor sits that you can have more issues. If it is wrapped around the stalk, that can somehow and sometimes impact the immune system (I have seen papers on deviated stalks being associated with poor immune systems). I know in my case, I have a poor immune system and my tumors were small.
So, it takes being organized, seeing a proper pituitary doctor and maybe getting allergy testing (I just found out I was allergic to something that is in 99% of every soap, toothpaste etc so pretty pissed).
Get copies, and learn.
Modify your workouts maybe... I know I can't work out at all.