What an ordeal!! I was diagnosed in 2012 and after Humira and then Enbrel and finally Remicade, I am very well controlled with only occasional flares. I do have repetitive issues with tethered tendons in both hands and migratory joint pain. But compared to many, I am very well controlled by Remicade.
My doc and I recently discussed trying a less dangerous drug. But I am familiar with what you describe - that if you stop an RA drug and then resume, it is very likely not to work as well. So I am making no changes.
I am not familiar personally with Simponi, but an acquaintance tried it and had to stop because it jacked up her blood pressure.

Hang in there and good luck!!!