The only real thing I can tell u for sure is YES, anxiety can deffinetly cause ur symptoms u are experiencing, and U NEED TO FIND A NEW THERAPIST!!! I cant believe that they told u that!!??!! Weakness, and numbness are so common with chronic anxiety or panic attacks. YES, look it up on the net. Tons of info and confirmation of ur symptoms. Please, please find a NEW THERAPIST.
I'd also check my magnesium levels, since anxiety, numbness, and muscle weakness can all be a sign of insufficient magnesium. Are you eating your green veggies (broccoli, collards, kale, etc.)? So you might try a magnesium citrate supplement and see if it helps.
yes aniexty does cause that look it up and you will see the symptoms and weakness and numbness is one of them, as long as your not falling over and you can feel your hand touch your arm and leg you fine, i went through that and saw a neurologist and had tons of tests and find out it is mind over matter and it can appear for no reason, hope this helps.