Could be: or could be not, if you ate walnuts before, you can still get an allergic reaction, but kind of rare, maybe the start of a cold, at any rate, take an antihistaminic OTC, unless contraindicated, if symptoms progress or you develop difficult breathing please go to ER, be careful while driving or operating machinery and taking an antihistaminic, might cause drowsiness, good luck
Answered 3/16/2015
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2 doctors weighed in across 2 answers
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