Im 21yrs old and the last time I had unprotected sex was on may 24. I end up having my period the next day (may25) and lasted only two days. May 30th I went to the clinic to take a pregnancy test and it came out negative. But I been feeling weird and sick for the past almost three weeks. My Symptoms are (headaches, dizziness ,light headed, nausea, constipated, drained but always have a hard time sleeping, very moody, tingling and numbing in my hands and feet sometimes I won't eat or will only eat certain things, my nose is really sensitive to a lot of smell and I have this weird taste in my mouth all the time . Now I have discharge that makes it feel like I peed on myself or on my period.I just want to know what should I do and if I should be worry.

Go back to the Clinic and ask. Ask your Pharmacist to recommend a HPT - and use it.