does this sound like a UTI?? please help!

the very very tip of my pee hold is irritated and i don’t know why, from toilet paper or something? like if you pull it back it’s red and swollen.. now my lower back is starting to hurt. i’m scared. does it sound like a UTI? i’m trying to give it a few days to see if i’m feeling any better and drink lots of water and unsweetened cranberry juice. i’m pretty sure i drink enough water, i drink around 64 ounces a day and i’m 125 lbs. i am sexually active, me and my partner always use a condom and other precautions. i’m just scared, do you think it’ll be ok? should i give it a few days? does it sound like a UTI?