Cum went way up

so me and my fiancé had sex last night and i always give him head. but last night when he deep throat me which isn't unusual, but he came while he was so deep in my throat. some cum went up my nose.. some i swallowed. but the cum didnt go out my nose.. but i felt it go up.. then when i lifted my head some went back down my throat. it didnt so Much burn.. but felt like i had a sore throat..i couldn't blow my nose cux there was nothing to blow. (no puns intended). woke up the next morning.. when a bit of a cold like feeling in my nose and throat.. as tho u have to keep swallowing mucus...i been drinking lots of water thinking it will in someway. idk if there is cum still in my nasal cavity or not. Has this ever happened to anyone! should I be worried about anything?!