Is it a bad idea to mdma if i know i'm going to have to go through chemo in a couple of weeks?

Yes: It is a bad idea at any time.

Terribly Idea: MDMA has many potential adverse effects to include: irritability, aggression, ^ in impulsivity,anxiety, panic attacks, depression, sleep problems, low appetite, V sex drive & pleasure,^ blood pressure, cardiac arrythmia, ^ body temperature, muscle cramps, dehydration, chills, sweats, visual changes as well as seizures,renal or heart failure. MDMA depletes brain of serotonin.