From 2 years sometimes I feel like heavy breathing in night times specially and very few times at day times, and mostly it happens during winter times or whether change condition ,usually when I feel like heavy in breathing I take (l hist mont) or montek lc tablet after taking it I feel very normal for next 4-6 days or a week, then again I feel the same ,please can you guide me what happened to me ,is there any serious health issue? Suggest me to get cure permanently please.