I was prescribed 50mg sertraline this morning by my doctor because I have extreme anxiety and mild depression. I took one after breakfast this morning and felt fine, but now a couple of hours later I feel a bit dizzy, very sleepy and a little sick - I really struggle with the dizziness and feeling sick (I hate it) and it panics me that I could feel even worse (ironic, I know). I don't know if I should power through or not. Also I'm at more risk as I'm 18. Thank you to anyone who can advise me...