there should be no issues. especially if you have a tolerance to any of said drugs. pregabalin and benzodiazepines though are a pretty knock out combination so watch out. maybe take 1 benzo instead of two.
homeless -> basic drug discussion
it's because pregabalin doesn't seem to have any negative implications on respiration. neither do benzodiazepines to such a great extent in regular dosages and what happens more than anything during the combination of both is marked potentiation of benzodiazepines gabaergic effects. your pregabalin dose is also not excessive for what people tend to take recreationally.
if you feel angry, that might be lyrica or benzo rage.