Firstly get yourself diagnosed. For that meet a doctor in person. If there is hormonal imbalance it can be helped by supplements. If you have some chromosomal abnormalities, then medicines might not help. In any case, a doctor can suggest you the needful after examination.
Dear, don't get panic. According to description you gave you may have some hormonal imbalance or lack of a few hormones. This is a but may be complicated but completely curable in homoeopathy. I request you to provide me the full reports for a proper diagnosis and perfect solution for your problem. I thing I want to mention is as you have already told that your penis is so small and you are developing chest like women,please confirm the position function of your testicles, that is weather the testis are in scrotal sac below penis or not. And weather they are functioning well.