Bottom of my left food i have a tingling sensation like i goes to sleep. could this be a problem?

Get evaluation: First thought is possible tarsal tunnel syndrome due to nerve pinching at ankle, but could be due to s-1 problem in lower back, and maybe initial sign of peripheral neuropathy. Focal tingling of this sort may also represent the initial manifestation of vascular insufficiency, and a niva arterial study should be done. Recall, "ounce of prevention".

Numbness: Numbness like this likely happens when a nerve is damaged. It is quite likely that the damage in this case is occurring due to a pinched nerve in your back at s1. I would see your physician or a back specialist in order to receive a proper diagnosis and treatment.