Hlw Doctor...i M 18 Years Old Boy....and I M Facing

hlw doctor...i m 18 years old boy....and i m facing night fall problems 1or 2 days after,i.e.,3-4 times in a week....and,normally i do masturbation once or twice in a month...then also,during sleep sperms ejaculate of its own...for that i felt week some times...so,plz tell doctor that it may cause any health problem like lack of protein,calcium in our body.....also,how to get rid of this problem???
thnk you