Just wondering how long you have been on mtx? What you are describing sounds like irregular heartbeat? but if you check you pulse when its happening you would be able to feel the missed beats. I just happened to notice that you and I both have RA plus the lupus, and I have Afib, thats why I was wondering.
Anyway..glad you posted about it, but I think you should talk to your doctor anyway, and I know, I know..you dont want more tests..but well..best to know what's going on right?
LOL I say that all the time..once ya hit the big 40 you are like a car, everything wearing out...oh well..we can be classic cars
Take care, and I hope you find out what it is soon
A/Fib, diagnosed Aug, 1997, R/A diagnosed in Sept. 1998, Pericarditis and Lupus in Dec, 2003, Diabetes, diagnosed march, 2004
sotalol, digoxin, coumidin, plaquenil, prednisone, metformin, diamacron, wellbutrin,fenofibrate