 [ Symptoms ] my drug test for a new company position came up looking like i bought some yhing from the head shop and i did not why [ Disease ] i can not answer that question i am not sure what drug that came up positive the type of test you had blood urine hair how high those levels were or your honest and i mean honest drug history while drug tests have been known to come up false negative it is really up to you to explain to your new company what may have occurred certain drugs can stay in your system for quite a while