I think I had a stroke? Did I overdose?

This morning after taking laxatives the night before, I awoke to my heart beating extraordinarily fast, impared vision (seeing complete white,only making it to the bathroom), and a sense of impending doom. (I had only taken 1 pill). I've taken laxatives on a regular base for a month or so now, but about a week ago I took 2 laxative pills, that did not work, so I had drank pure magnesium citrate thinking it would work finally, I just ended up almost puking and feeling sick the whole day..I know that magnesium builds up in your system so I'm kind of worried, I guess I figured it doesn't apply to me...Anyways, today since this morning I can't control my movements much, I went out to eat with my mother for her birthday and I could barely keep the food in my mouth, I feel really off balance and my kidneys are hurting. I'm 15. Should I tell my mom about this so I could see a doctor? or should I not worry and never take magnesium products from now on?