When is the last time your therapist changed your meds. It can take a long time to get the right balance. If he/she isn't helping you maybe you need a change. You should be able to get some relief. It took my doc 2 years of trying before I got the right mix. I know this sounds hokey but are you getting enough protein? Poor nutrition can contribute to your fatigue. Sleeping all the time was my major symptom also.
You can be that high powered person again. I really think you need to find the right dr.
Good luck