When I went to the doctor for my yearly physical, my doctor noticed that I had some red streaks on the roof of  my mouth.  She asked me if I had been vomiting, and I said no.  What could this be?  One minute I am hot and the next minute I am cold.  My temperature is 97.6, which is normal for me.
Hello! Read your query. This hot and cold flashes can be due to stores and hormonal irregularity. You did not mention your general health status. I suggest you to check the hormone levels (TSH,T3,T4) and sexual hormones. Make sure you do not suffer HERD. Regarding the red streaks, this can be secondary to HERD or hormonal irregularity. You do not need to worry unless you see them increasing in size or a symptom like pain or burning arises. Regards.