You likely didn't have strep if your throat wasn't massively painful. Strep throat actually usually looks simply bright red. I'd guess you have tonsillitis. Your throat may just be swollen when you look back there. You can gargle with salt water to see if that helps or take ibuprofen to reduce swelling (if that is something you can take without problem). If it IS tonsillitis, antibiotics can clear that up. So, a doctors visit is in order if you still have symptoms (usually with a viral cold, you get a sore throat that lasts just a couple of days and then is gone and other symptoms are more present like the runny nose and such). This symptom tracker may help you too https://symptomchecker.webmd.com/multiple-symptoms?symptoms=lump-or-bulge|sore-throat|swollen-tonsils&symptomids=148|219|188&locations=10|10|10
Hope you feel better!