I also have a cold like ice cold water being poored on my leg that how cold the feeling is.? And what can I do

Call your doc ASAP. Could be vascular (blood vessel), could be neurological, even a stroke. Call md or go to er asap.
Depends. Possible vascular-arterial, occlusion- which is serious! possible neuropathy if diabetic or other illnesses needs good history and exam- vascular surgeon.