Inject able Methamphetamine
, pins & needle sensation
If you are using Intramuscular then needle prick over nerve
fibers nearby may cause tingling sensation
otherwise it can be even due to chemical irritation to the local nerve fibers.
Anyway since you discussed let me give some insight.
Remember Sharing Needles will lead to infections (transmissible like Hepatitis
Use of Methamphetamine will gradually lead you to dependence state.
kindly motivate yourself & also motivate your friends to Quit methamphetamine use.
It is quite possible that with adequate counselling
and with appropriate drug management you will be free from methamphetamine use.
All the best for your healthier life