I wouldn't smoke weed with opi's until you know you can handle it...the itching can be resolved with a antihistamine but personally I wouldn't take one cause I like the itches...I'm not sure why you get a headache if your taking hydrocodone b.c hydrocodone is paired with asprin
first off i'll say, taking opiates with an antihistamine, is bad advise because antihistamines like diphenhydramine (aka benadryl) causes a huge increase in respiratory depression and in general central nervous system depression, that said it's a dangerous combination for anyone who is inexperienced with narcotics like morning bell, and experienced users as well. BAD ADVISE. ALSO that combination will increase the urinary retention 10x .................. listen up cause i know what i'm talking about here.
ALSO hydrocodone is sometimes prepared with asprin, but it's not all that common, almost all of the time it's prepared with acetaminophen (aka tylenol, or APAP)
and taking more then 1gram of APAP in 4 hours is NOT good, and no more then 4 grams (4000 mg) a day.
taking opiates with antihistamines will potentiate the CNS side effects, so take half dose if you going to do this, and will increase urinary retention greatly as i have already said.
if you want to enjoy opiates responsably, with the reaction you have, i would say try different ones, but be very very careful, this is a touchy subject because its very dangerous. BE CAREFUL. different opiates may cause MORE or less side effects. the newer drugs like oxycodone are supposed to have less side effects, but it's all up to your body chemistry. hydrocodone usually causes more histamine release (i.e. more pruritus aka itchyness). as for the urinary retention , that is something that will only get worse. deal with it.
fentenyl will probably have less side effects with you.. but that is only for opiate tolerant people
it's very potent and dangerous for an opiate naive person.
dude be careful, don't take opiates lightly, research everything , and make sure you know what your doing.
also be careful when listening to these other posters, because they are clearly not exercising caution.