Probably two things are happening...you switched medicines and you stopped taking shots during a bad time of year. This is a lot of change. Don't ask me why doctors are not more sensitive to patient's needs.
I would take the bendayrl as needed until I saw or spoke to my doctor. After all, you are not their slave. You must be very self-protective in "medical world". After all you could have an accident on the road with so little sleep.
Hope you feel better soon.