Suggest Treatment For Stomach Pain After Inhaling Methamphetamine

I inhaled a gram of meth yesterday like we inhale a cigaret,I didnt know that i was not supposed to. I'm a 21 years old man weighting between 75 and 89 kg and mesure 1'88. Now i feel a bit of pain around my stomach. I just wanted to know if it causes serious or long terme damage. Thank you