You should certainly see a doctor about this. Go the emergency room if you do not have a doctor you can see right away.
You truly are playing with fire taking and mixing all of these highly dangerous drug combinations. Any one of the drugs you mentioned is highly dangerous but the combination can make for deadly or life altering problems. The first drug you mentioned, DXM, taken in high doses can cause permanent brain damage, psychological problems or psychosis, among other serious medical and mental health conditions. Mixing the DXM with the other drugs only increases your chances of harming yourself. Additionally, I have heard many stories about individuals who experiment with drugs and seemingly never recover. They never seem to “come back” to themselves and some end up with severe mental illnesses.
It is imperative that you stop taking these potentially deadly drugs and please get help in trying to stop. I would strongly encourage you to seek help from a therapist in trying stop taking these dangerous drugs. If you do not stop, there is a good chance you will permanently damage your body, your brain or accidentally overdose and die. Please stop immediately and seek help in trying to do so. I hope that you heed this advice.