Pseudoephedrine Hydrochloride and pins and needles

I took three doses of this medicine (as directed) over the period of a day. i started to feel light headed and got up to go to bed. I looked in the mirror and my pupils were dialated to almost the size of my irises. I laid down and everything started to tturn black. i elevated my feet but it didn't help. It felt like i had pins and needles being stuck all over me. All of my muscles tensed up at once and then whe ni was finally able to relax them i started shaking uncontrollably. I was so dizzy, I couldn't even stand up straight. I found out I am allergic to this medicine. there are no warnings on the label that this could happen. i think I may have been in shock. Be careful!!!