Everytime I do E I get depressed two days later

Everytime I do E I get severely depressed two days later. I read a few different things about people getting depressed after doing the drug. A lot of people say it may be because E kills serotonin receptors and that is why people often feel down after binging or doing the drug too often. I don’t often do E. I could have done it about 10-15 times in my life and it happened almost every time. I’m starting to think I should stop using MDMA altogether. I’m gonna get blood work done and see if my serotonin levels are normal. Anyone else have similar issues?