I absolutely know how you feel. I worry about everything and am at the point where it is affecting my body now. I'm tense all the time and my shoulders and back ache from carrying all of my worries around.
I used to ride horses and didn't worry about anything. Three years ago I fell off (for the first time ever) and within a week a horse threw its head and knocked me in the eye. I'm lucky I didn't lose it and only had a terrible black eye. Anyway, now I cannot even go back to my friend's farm because I am terrified that something bad will happen, not necessarily to me but to the horses or my friend. I won't even go visit; I'm afraid something will happen just from me being there.
So that is just one example. It's rampant. I don't see a therapist either, just a pdoc. I've been in therapy so much that I don't see the point anymore; they can't tell me anything I haven't heard before.
I guess my point is that I totally understand the worrying and wondering. I didn't used to be this way either and it seems to just get worse as I get older.
Does your health insurance cover a pdoc? Maybe s/he can help with the worrying and give you some advice and an ear (and not just meds).