I don't want to alarm you , but have you reviewed the symptoms of a heart attack? Isn't there tingling in face & down the arm in some cases?
My Lupus can cause just about
anything to randomly become tingling - if it's in a new area or seems dramatic or lasts more than a few days, I'd suggest visiting your UCTD Dr for more analysis.
Hope you feel better soon,
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2002DIAGNOSING LUPUS & HW's LUPUS 101
"Life is far too important to be taken seriously." - Oscar Wilde