Amral. Be careful when blowing your nose very hard especially in the winter. Also avoid quick and sudden movement with the noggin. I suffered with this ailment back in Guyana for 6 months about 30 years ago. After being skimmed and misdiagnose by some doctors I finally was treated by Dr. Enid Denbow who prescribed some Stemetil for one week and that was solved. Got it back in mid fall 2019, my doctor who prescribed some Prochlorazine. I did not take the meds and it worked out fine. I determined that it happened when I tried the vagal maneuver.