I’ve been using BDO 1.4 for 3 months every 4-6 days or so. Single doses, no mixing with rare cannabis exceptions. My usual dosage is 1.5-2.0 ml, though im not a big person. Ever since my first experience with the drug ive been noticing weird side effects that are unique for the substance for me. First of all, at 1.7+ ml i sometimes feel the top of my head being cold af and after some minutes i completely stop noticing it. The second one is weird feeling of tension in my jaw. I dont think i clench my jaw at all, but it feels like its tired. I rarely got headaches and nausea and even those come at 2 ml+. Is it an allergy of some sort?