been taking the wrong pills all along

So it looks as though I've been taking the wrong pills all along. Last night I felt a cold coming on so I drank a flu tea which contained paracetamol. After a while I started feeling so good. It totally worked for my anxiety aswell. I went to the shop and didn't think about anxiety at all when normally I have to keep fighting against an anxiety attack when visiting a shop. I have yet to discuss it with my doctor.