[losing touch.]

yes it'll be the caffeine withdrawal that'll be giving you the headaches. maybe try drinking less of them?. you don't need to cut them out of your diet alltogether, but drinking less of them will definitely be healthier for you. obviously there is the option of just stopping drinking them completely.. and really, it's not all that hard. i don't think the odd energy drink now and again is a problem, but you shouldn't really be reliant on them.