Randomly was getting slight pain and numbness in fingers and feet, tightness in neck and face. i also would get slightly dizzy when lifting weights. stopped lifting and symptoms practically went away and then came back when i lifted again ?

Neuro or vascular : From your brief description it sounds like you could have some compression on your cervical spinal cord in your neck or a compressive neuropathy of peripheral nerves in your hands and feet. Another possibility is poor blood flow in your distal extremity is made worse by exercise. You should definitely mention this phenomenon to your primary care physician.