is not in any way standarised, it might contain dangerous adulterants and it might have been produced in far from adequate conditions. Im sure plenty of people have found different batches give then adverse effects. This is one of the dangers of using street drugs
Perhaps you are over doing it, not that doing it is in any way healthy to begin with.
Im not sure where your post is leading.
Do you have a specific question?
If you are concerned about your health then the best place to go it a doctors.
If you have to do dangerous drugs then make sure the rest of your life is run as healthy as possible.
Eat a balanced, healthy diet. Avoid excess sugars and caffeine
and drugs including alcohol
Make sure you drink planty of water to prevent dehydration and to help your body rid itself of drugs. Dehydration can lead to headaches.
Maintain a healthy sleeping pattern. Staying up for long periods of time will lead to headaches and other health issues, with or without drugs.