hello frankie... you are having three problems and let me clear you on first instance that they are not interlinked to each other... 1. if you are not feeling any difficulty in breathing..then why bother what others say to you... because breathing is such a function of human body that anyone can notice change in oneselves breathing pattern... but if you yourself are feeling any change or difficulty/laboured breathing then you should consult your doctor and undergo some tests like Chest X ray,ECG,CBC etc.. 2. having a rash near your testicles is thing, which should be treated by consultation with a doctor or dermatologist.. it could be because of poor hygiene or any infection mostly fungal infection.. 3. erectile dysfunction could be because of causes like any major medical illness like hypertension, diabetes, any urological causes, due to any long standing treatment with psychotrpoic drugs or any chemotherapy drugs, any addictions like use of tobacco, smoking, cannabis, alcohol etc... but in majority of cases it is psychological or stress induced... but in your case needs few details about you, then only can tell you exact nature of erectile dysfunction... till then no need to worry... we can discuss this issue in detail... take care...