Major Allergies!!

Namee • Second time pregnancy!! So blessed for this pregnancy🙏
Never had allergies like this in my life until this week. I'm 11 weeks & I'm having major allergies, congestion, runny nose (clear discharge) & sneezing for a few days now. First day was the was worst with headache & body aches. Need info HELP!! Any remedies & explanation? Is anyone going through this too?