This is not weakness, although I have felt the same in the past.
This is strength. Right now, if you can focus on now and what you are able to do to gain confidence and productivity. Put the med issue aside for a while instead of looking at it like that mountain you are approaching and don't know if you can climb. Let it be. Build other skills,
meds are not all bad------------no more smallpox, diabetics can live much healthier and longer, some cancers are cured...the mind and body are not two different entities. ----if you can let go and accept it for a time (say six months, a year) and do other work you will begin to feel stronger.
Please realize how strong you Are just to be dealing with life each day. No joke.