Anxiety

I never struggled with anxiety issues, always thought it was in people's heads. As I am getting older I struggle more & more w my feelings & how I deal with them. Lately I often feel my chest feels so tight, I have a head that doesn't seem to ease up, my stomach is always in a knot & no one can say anything to me without going off the deep end!!! Idk what to do I'm so overwhelmed with the feelings!!!!