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How long have you had these symptoms? Nose block? Lung disease? Snoring? Mental stress? Smoking? Other symptoms like headache/nausea/vision problems?
This could be due to many causes- nose block/snoring may interfere with breathing. Anxiety
, due to mental stress can cause sleep disturbance. Another possibility is a cardiac illness.
So visit a general physician for an examination and some tests.
Meanwhile, follow sleep hygiene
, realxing befor sleep, like light music/reading/ walk in open air/ taking appropritate steps if you are stressed out. Visitng a psychiatric conselor will help if thats the case.
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