Numbness, tingling in feet, legs, hands sometimes face went to doc he didnt help. Starts suddenly at different times should I worry? My head xray was good.

Metabolic causes. Trace minerals,Magnesium,Calcium deficiencies may be causing this type of numbness. Improve your diet. Include daily nuts,fish & plenty of water. Refer for details. Supplements with magnesium,calcium & trace minerals need to be taken now.
More details needed . Can you give more details. Is the symtoms in one side or both? Do you have any any weakness with it? If its in one side then MRI is indicated to rule out stroke since CT can miss it (i am assuming that what you got was a CT). If its in both side more test needed to evaluated you for causes of possible neuropathy . .