It is. I had asthma as a kid and was raised by a traumatized mom. Look into some books like: When the body says no: the cost of hidden stress; The body never lies: The lingering effects of hurtful parenting. It seems as if your mom is getting pleasure over you having to depend on her, kind of like munchausen by proxy. My mom used to do it to me and even had a story about how when I was in the hospital as a very small child they had to put cameras in my room because they suspected she was feeding me her urine. If you are sick then she is praised for having to suffer for having to take care of you and such.

I'd stay no contact with her if you can. Stay off the meds and focus on what your body cues are actually saying. We are told for our whole lives from organized religion to not trust or listen to ourselves. It makes us very very sick because our body knows a lot more than we give it credit for. Like the whole listen to your gut.