I feel terrible. symptoms include congestion, pressure in face and chest, stomach pains/cramps, soar throat, mucus drip...should i go to the clinic?

Doctor can examine: Throat pain can be from a strep throat infection (antibiotics needed), a cold or influenza (antibiotics usually not used), or from some other cause such as allergies or irritants. Usually, a person sees the doctor if the sore throat is bothersome, recurrent, or doesn't go away quickly (mainly to look for strep). Flu (influenza) season in the US usually runs from late November through February.