Made to feel daft

My avm in my arm has begun to flare up. Ive been doing ok after my 1st op but today my arm swelt up and went numb from my upper arm downwards. Went to a and e and was fobbed off by the avm specialist sayings its a mere spasm and to warm my hand and take gtn.
I felt a fool for going to a and e asthough an avm is nothing