Chills , feeling cold, shaking, no fever, no other symptoms. temperature was 97.3 last night but this morning up to 98.3, still cold feeling, what could it be? have history of low vit k, could it be that again?

Anemia: Sometimes people with low blood counts (anemia) complain of feeling cold. Other possibilities could include hypothyroidism. Feeling cold with a normal temperature is somewhat of a vague symptom. You would benefit from a full medical history and symptom review as feeling cold as a single symptom does not truly distinguish what may be the underlying cause. Hope this helps!