Heart palpitations

I have fibromyalgia for years. My symptoms are rib pain, lower back pain and stiffness, shoulder pain, overactive bladder, brain fog and soo on. 2yrs ago I got TMJ problems and i was so scared. Now I've got fucking heart palpitations in the last 2 mths. So are they a new fibro symptom? They happen at night when I lay down to sleep. Do you guys have these too?