I think over the years I have had most all the symptoms of anxiety but the more recent ones include:
hot/cold flashes, pounding heart, weak legs, tingling in hands & feet; horrible what if thinking; sometimes my legs feel like jello and extreme scatteredness form "fight or flight", nervous stomach, weepiness
I too have had the pressure in chest and headaches(thinking I had a brain tumor)* or that the docs have "missed" something.
*of course the brain tumor thing came back because Monday I found out a friends friend had a brain tumor dx on Friday and was in surgery Monday AM after suffering 7 weeks of headaches and being treated for migraines! I had a CT scan and MRI about 3 years ago and all was clear but my mind still wonders! Also the heart thing, I also, like many others, have had the EKG and other tests along the way.
geez....the list could go on
oh and did I mention I have HEalth Anxiety and work in healthcare!