Question: I'm a 24 years old male and I have started to experience panic attack and anxiety disorder 4 years ago. I used to feel dizziness, numbness in head and body, heart racing and feeling like i'm going to pass out. I have done many health checks and tests until I finally been refereed to a psychiatric. He prescribed me Cipralex and (ativan when needed). I have started taking cipralex 5mg and gradually increased to 20mg and been under medication for a year. I have stopped taking Cipralex on 2014 and kept taking ativan when needed. After 2014, I haven't had a serious attack and I almost came back to normal.
Three weeks ago, I went to play soccer which I haven't play for few months. During the game, I have started to feel dizziness, numbness in head and around my lips and felt like old symptoms of panic attack. I also felt that I'm going to pass out. The symptoms didn't actually go away after that days as I kept feeling dizziness, blurred vision and feeling like going to pass out constantly. I have been in contact again with my Doctor who told me to start taking Cipralex 10 mg again. I didn't feel any better in the first few days. I have actually felt worse and Couldn't sleep in the first 4 days after start taking cipralex again. On the fifth day, I have started feeling better and coming back to normal day by day. Last two weeks, I was feeling very well and almost back to normal.
Two days ago, I went to play to soccer again and unfortunately I had the sysmptoms of the panic again. Last two days, I'm feeling a little bit dizzy. I also feel uncomfortable as my vision is blurred and unclear. I also feel a little bit of numbness around my lips and that my face muscles in general are tensed. I'm very stressed and worried about this especially that this is my last semester in university and I dont want to be affected badly. My doctor have asked to increase the dose of cipralex to 20mg.
Please advice

Thank you Doctor Sheppe for your reply,
I have started to take cipralex 10mg again almost 3 weeks ago and due to two years off cipralex, I have been experiencing few side effects of returning to cipralex such as lack of sleep and feeling worse in the first few days. These side effects went away starting from the fifth day.

Would I feel any side effects if I start taking cipralex 20mg from tomorrow or It would be fine especially that I have been taking cipralex for three weeks now ??
One more thing that I would like to ask is how long do think I might take to feel better and start feeling better ??
Thanks so much for understanding