What.should i.do.

My husband and i been together for over 13 years . So i dont want to even thinkor do.now .just yesterday.it was a good.day wirh him but today i got home from work and he gave me a kiss.but when i warmed.up.the food for us to.eat ,he started having.a headache so.i.asked him , whats wrong and he said everytime am with u i.start getting headache . Am really sensitive i.just walked.away . I.feel like.hes losing feelings for me . Any advise. I really love this man but if am.the problemi would rather walk away