My mother (57+ yrs) is under treatment for Hypothyroidism & Hypertension. Today early morning (4: 30 AM) she got suddenly waken up with feeling very cold & finding it really difficult to breathe. She felt it could be due to gas & indigestion & therefore taken the medicine'pundinhara' which gave a little relief to her. Later after passing motion etc she felt normal. But still she does not have much appetite although no other significant symptom is there. I have checked BP in the morning (after 3-4 hrs), which came as 115/70 (in electronic monitor) with pulse being 70 & body temperature (in mouth) came around 97.2 F. Can you please advise on what could have caused this - gas/indigestion or something more serious stuff?