Suggest Remedy For Penis Problems

m a male of age 26. my height is 5.8 and weight is 75kg. i observed a dotted ring on my head of the penis many years back around 11 years. it is visible when the skin on the penis is pulled back. no any itching like that problem is there. i never consulted a doctor for this. is this is a problem? will this can be cured?i never had sex with ladies. but i had animal sex(cow and hen). will having sex with animals will lead to severe health problem? now i think i am alright. health seems good. but i am thinking to get tested my blood. i have some dots on my back, chest and shoulders like pimples. sometimes it gives itching. this is also there from many years may be from 13 years and i seen similar dots on some of my friends of similar age. is that a common thing?i am doing masturbation from my child hood. someday i do for 3-4 times. my penis is bend to left as a banana. will that give problem when i have sex with a lady? i always think about sex and love to watch blue films. am i a sexohaulic?please somebody clear my doubts. i will be thankful to you.