Hello and thank you for your question.
Do you still smoke?
Besides tingling do you experience burning pain or numbness?
Do you get sudden urge to move your limbs and if you move them do you feel better?
okay. So it is not likely related to RLS. Does this tingling occur in your fingers and toes only?
okay. As you are smoking it is possible that you are developing neuropathy. This can also cause RLS and it can occur in hands too.
Scans would not help to evaluate this condition. You need to see a neurologist who can clinically evaluate you and order EMG nerve conduction test and blood test to check iron deficiency.
Anxiety can also manifest such symptoms.
Yes do not stop abruptly but stop it slowly so that you may not experience withdrawal effects.
you're welcome. It is not life threatening but you need to get evaluated as if it is neuropathy than it may progress. Yes request your doctor for referral to a neurologist.