Am I being paranoid or reasonably concerned about my health?

Hey again,

so lately I've been struggling a lot with the fear of getting sick or something really bad happening.. I started getting paranoid over the smallest little symptom such as a mild headache, dizziness, etc.

So yesterday my left arm and neck started hurting really badly and went numb and weak. I called a health care Hotline and they told me to call an ambulance because I was describing stroke like symptoms. I went to the hospital and they ran some tests on me. They couldn't find anything stroke or tumor related. However, they couldn't quite tell me where my symptoms were coming from.

Last night I was shaking very badly, it was almost impossible to fall asleep.. And today the left side of my face feels numb too.. I've read that numbness in the face can come from stress but that's only one of the many many causes for this symptom..

Am I being paranoid? Or reasonably concerned? Has anyone ever dealt with anything similar before?