 [ Symptoms ] i have been smoking crack regularly now my limbs go numb chest gets tight and head fills with pressure am i in danger hi i have been using crack cocaine recently and i am starting to have complications when i take a hit no matter how small my left arm immediately stiffens then tingles i a feeling of a lot of pressure in my head a spot in my chest on the last side swells up my throat tightens especially on the left side and its hard to breathe i also feel tight in my lower back i know it is wrong to use i need to know whether these symptoms are life threatening or not [ Disease ] i am not a doctor & i have never used crack but i have used meth so i am just giving you my opinion from what your saying you might be having symptoms of a stroke or heart attack & the lower back could be your kidneys so i would see a doctor asap also idk how crack is made but if it is cut you may be allergic to whatever it is cut with just trying to help