My penis has been normal since I know about it. It erected perfectly. It ejaculated perfectly. It aroused normally. On my first night, it erected only about 70% of its full erection. After that it became flaccid. From last 3-4 days it is flaccid. It is not erecting at all and neither is feeling any arousal. In flaccid state, its size varies from 1-2.2 inches. I never had this problem before. I was not able to penetrate. How can you help me with this?