My hubby is suffering 3 times vertigo in last 4 months, in initial stage when he pressed break of car, at that time feeling car ws running back faster. After 2 days when he slept, the entire roof is spinning faster. When he is walking, working, eating, nothing happens. He has taken medicine betahistine tablets ip for 3 days, after that no problem, again after 1 month or 2 months it is happening. Did the blood test before 6 months, cholesterol was 270, pl. Suggest.