Hi there ~ I understand your concern. It is very likely that you have a urinary tract infection or a sexually transmitted disease which can be tested by doing a urinalysis and a urine culture as well as a screen for sexually transmitted diseases. I feel like you might need to see a doctor as soon as you can. I would also ask you not have sexual contact with anyone till the diagnosis is clear and you are treated. It is always suggested to maintain safe sexual practices while being sexual active, preferably condoms if you are not both tested for STDs before intercourse. Also you might need to consult an psychiatrist to find out if you have any difficulties in your libido or have other mental health concerns like depression. Otherwise, you have a very common problem of erectile dysfunction and / or premature ejaculation and it can be easily treated with medications available during this time. The class of medication is called phosphodiesterase 5 inhibitors (PDE5Inh) selective serotonin reuptake inhibitors and it also helps with decreased libido which is a result of depression if you are going through one. I advise you to consult with a qualified psychiatrist who might be able to help in this regard. I hope this helps. Take care and have a lovely day!