Absence of erection & sexual desires, Discolored tongue & allergic to aroma

Hi Dear Doctor,
hope ur doing well, im looking for ur help which will be greatly appriciated.
Im 29 years old.
Heigh 5 feet 10inch.
Fair complextion.
Family has history of anxiety and heart problems.
I had joyful childhood.
Dear Doctor till january 2012 my sexual health was good, i had normal erection but i had seminal discharge at times with sexual thoughts and at times in urination. I went to a Hakeem who said it is the reason of my weakness which can be eliminated, he gave me medicine which stopped my erection in one week and since then im riddled by the problem of erectile dysfuntion. At times i have erection which is very weak and dont last for long, I have sexual desires but penis dont respond to this. It goes inside like turtle goes into its shell, testicles are hard and up most of the time. When i wake up i have erection sometime but they disappear quickly, i dont get hard even if i think of very intimate times i had. Even when i try to masturbate by pushing myself into it i dont have much pre-cum and it is foamy which used to be like mixture of water and secretion when i had normal functioning of my reproductive organ.
In my younger days i used to masturbate 3-4 times a week and i used to feel horny if i dont do after 4-5 days but i have not felt horny for once since i took hakeem medicine, no seminal discharge happens and this has caused a great deal of trouble to my life and mindset, i feel shy and lost my self esteem caz i know i cant have erection when i want.I used to have good erection and especially arousal was fast but due to my ignorance im suffering since i visited hakeem. After that I went to Urologist and he gave me Viagra when i want to have intercourse and couple of supplements on top of that, viagra was helpful, it made me hard but it didn't restore the natural behavior.
i niether smoke nor drink alcohol but my tongue is discolored with white and yellow patches, if i drink green tea or any hot drink it gets worst and taste of my mouth has almost diminished with dry feeling in mouth, this problem started after i had diarrhea 8 months ago since then my digestion has suffered. I have excessive wind that keep passing, I went to gastrologist and he said i have IBS and gave my few medicines which made me felt unpleasent.
im allergic to aromas of almost all perfumes and body sprays, even at petrol pumps my eyes get itchy and my face gets swelling with heat in the ears.
inside im fine but at times i feel down and afraid of death with these mounting problems to health.
Im really looking forward to doctors to guide me with their knowledge and wisdom. I will always be grateful for helping me. Thanks