I have ms and sometimes i feel cold?

Multiple sclerosis: Of course, patients with multiple sclerosis can get all of the same symptoms of feeling cold as anyone else (low ambient temperature, fever, sweats, under active thyroid, etc.), but they can also develop a problem with their autonomic nervous system which controls sweating and thus may affect the skin sensation of temperature.

Perhaps co-morbidity: Sensations of coldness have little if anything to do with ms, and most patients have problems with heat intolerance due to fatigue and symptom exacerbations. Studies looking at autonomic dysregulation have not demonstrated any temperature issues otherwise. Check thyroid and hematological functions, especially vitamin b-12 and d, get a physical exam.