I need help

I have had anxiety all of my life. I had my first panic attack a week ago on my 20th Birthday. I became weak, hot, heart raced, dizzy, nauseous, and about everything that could go bad. It came on randomly. after that I had a continuous headache for over a week. I went to go on a date with a guy I have been seeing and had to leave 10 minutes in because I was having another episode of panic attack. I have all the symptoms but never feel nervous or anxious. Now I’m scared to do anything with him because of the risk of it happening again. I’m not sure what I should do. I don’t know why it started either. Any tips or anything would be appreciated.