In general, whenever things got worse after a doctor put me on a med, I would stop the med. I remember when a doctor put me on duloxetine (brand Cymbalta). I started getting this weird trembling in my throat, which only increased my anxiety. Went off the medicine and it stopped. I also remember a tie when I was finding it difficult to sleep, so the doctor had me try zolpidem (brand Ambien). I woke up at 2:00 a.m. with my lower lip swollen to twice its normal size. Needless to say, I didn't try that again. At an earlier time in my illness, I tried taking diphenhydramine to sleep, and it wired me up instead. I have not had a good track record with many medications.
Regarding what might have triggered all of this, consider your nightly routine. Did you change anything prior to these bedtime adrenaline rushes starting? TV watching? Food eating? Web surfing? Family arguing? Anything that could change the way you stimulate your brain at night? Has anything changed in your general outlook on life? Relationship changes? Job changes? Standard of living changes?