Anyone else feeling this way?

Ok so I’ve been getting this more recently now. I feel like my heart stops out of the blue and then I get lightheaded feeling like ima pass out. I get this cool sensation in my chest and my heart then faster. The cooling sensation is especially noticeable. 

Also just woke up from a sleep with a racing heart. It’s 4 am now and I can’t go back to sleep. It scared the crap out of me never had this happened before. Just concerned if I have a heart problem or not. I just started Zoloft 25 mg 2 days ago so still waiting for it to kick in. Also been back in and out of the er and all they do is give me ativan and Xanax. Today was my 2nd night in a row having to take Xanax to be able to fall asleep. 

It's just anxiety. If you're worried about something, you should talk to someone about it. People said meditation helps. Also doing exercise proven to be good for anxiety. Do breath exercise, deep breath from your nose and hold it for 5 seconds and then breath out through your mouth. Do it until your breath steady again and you feel better

I have been having the same experience for the past few months. It's really scary. I haven't been taking any med but regular exercise and meditation.

Try not to worry. You will be alright, just keep telling yourself that.