Yes.

Go easy on yourself and don't feel guilty that you're in a bit of denial or having trouble wrapping your head around this. Anxiety is calling the shots right now and you can't be expected to catch up so quickly. So it's ok and it's normal to question just how much physicality that anxiety can cause.

But yes it can cause physical symptoms. Check out your PM's for my heart problem story. (All caused by anxiety)

Having anxiety doesn't mean every single thing under the sun is caused by it either, but it merely should be on the list of causes and considered a strong probable cause for most new and especially "hard to describe" or "weird" symptoms.

Be kind to yourself. You like to be in control as you say, so it's no wonder this is really difficult on you. That's ok. We're all trying to help and no one will lose patience that you haven't instantly been converted or cured be good to yourself, distract yourself with something that relaxes you and invest in some deep breathing time ok? Take care... Be patient with that lion, takes a while to tame them...