Hello, I am new on here. I have had anxiety/panic attacks since grade school. I went through some traumatic things later in life and went on sertraline 25mg and it really helped me cope for a few years. I am now 40 and the past 7 months o have had my heart racing in my sleep and wake up with my HR at around 120-135 BPM. I then throw myself into a panic attack and end up calming down enough to go back to sleep. I have a higher HR in the day when doing regular activities like cleaning and my BPM range from 119-125. I have a resting HR around 85-95bpm. I just wondered if anyone has experienced palpitations in the middle of their sleep and is it normal?