Nasal blockage , disturbed sleep and uneven palpitation.

Patient: I’m 21.i cant sleep well from several days and wake up after few hours,at that time i feel so slower palpitation and breathing as well,dreams cover the most of the part of my sleep,and i stay concious while im sleeping.feeling tired during day.palpitation becomes faster if i do some hard work.i have a problem of blocked nose and i thin it is related to my sleep , i’ve taken the teratment from e.n.t specialists and heart specialist for says that everything is normal but im not satisfied yet.i steel don’t know what is the basic problem but i know all the problem i have are related with one another.please help me and reply quickly.