Resin doesn't get me high, it gets me stoned.
Resin to me is like an indica high, it's actually decent for one. But it's nothing like smoking some buds because buds contain THC and you feel more high.
Resin is definetly worth smoking if you are out, it's relieves anxiety and makes you feel relaxed/body high but you won't be giggling or anything.
Headache? Not really, I just feel tired after smoking resin but isn't that the same for indica buds too?