Me and my buddy made a water bottle bong, we used the middle of a plastic pen for the downstem, and aluminum foil for the bowl(stupid i know). While i was smoking it i noticed a strange taste so i dismantled the homemade bong and noticed that the top of the plastic pen (where the bowl was) was all warped with bubbles. The top of the pen had melted, and i was smoking some of the plastic fumes by accident! I now have a sore throat, it feels like my throat is burnt. This incident happened last Friday, and have been paranoid about it since. I have been drinking lots of water to attempt to detox my body from the chemicals i inhaled from the burning plastic. Should i go to the doctor or be concerned about this?