Due to a lengthy disease I was taking for about six months hydrocone 500mg. Not all the time but after surgery recently about a total of four a day for about a month. I am not taking them now as I read they could be addictive. Today I feel like I have the flu or something. Does this mean I am addicted? I am not taking anymore just in case but I just don't know if I am going through withdrawals or if it is a coincidence.