These drugs are usually given to assist men in performing well during sex. The permissible dose may vary based on different needs and diseases. It is imperative to see a doctor first of all before starting these medications. They tend to recommend an appropriate dosage with what is happening to you specifically.

After you have masturbated, it is quite normal to fee tired or distracted. While you are doing this, the body produces certain chemicals that can leave you feeling exhausted. Self-discomfort may be experienced if one starts feeling guilty about the whole thing. Drinking enough water, eating nutritious foods and sleeping well can help boost your morale. 

The discharge from your vagina is quite normal and it could turn white. The material used in making the dildo might irritate your vagina hence this. When you see some itching, redness or strange smell together with the white discharge, be sure that you have an infection. To prevent this from happening again, ensure that you always clean your toy before and after using it and also make sure that it is made of a smooth body safe material. 

Premature ejaculation is a common problem for men as it is often the reason for them to lose interest in sex due to the so-called "early stop." This can occur because people deal with stress or anxiety or get too overexcited. For this, there are treatments such as behavioral techniques, counseling, or numbing creams. Preferably, a doctor should be your first point of call instead of self-medication.

Stress, junk food, and cigarettes are all common causes of low sperm counts. In Ayurveda, people use certain plants like Ashwagandha or Shatavari for this purpose too – usually in the form of pills or powder. But don’t forget about living well through healthy eating and exercise.

Testing positive for multiple infections like yeast, UTI, BV, trich, and chlamydia does not directly indicate you have HIV, but it can increase your risk. It's important to get tested for HIV to be sure. Please visit a specialist like an infectious disease doctor or a sexual health expert for proper guidance and testing.

When combined, these symptoms may indicate a state known as hypogonadism, which can result in small penis size, erectile dysfunction, and premature ejaculation. This may be caused by the low level of certain hormones in the body. Seek medical attention for a proper diagnosis and treatment options, which may include hormone therapy or other medications. Don't be scared; some treatments can help you with your symptoms and the general quality of your life.

I get your fear but I can tell you now that your girlfriend can’t get pregnant from what you’ve said. For pregnancy to occur, sperm needs to fertilize an egg which usually happens during unprotected sex. There might be a small number of sperm in pre-cum but the likelihood of conception taking place in the situation that was explained is very minimal. It would be best if both of you do not want any STIs or pregnancies, and use condoms or any other forms of protection available.