well i dont know what kind of tolerance levels you have exactly. but if i was to ever over amp myself, and find my BP too high. i would have started with probably .2mg clonidine seing as it is a medication specific for BP. or i would take a xanax. i have over amped before, and just 2mg xanax was enough. i suppose the perk would help as well, but i would prefer either clonidine or a benzo. but i never found the need to take large amounts of both. then again i dont know your tolerance, but i found when over amped, i dont need to reach my tolerance level to get beneficial effects. I would have done one or the other, xanax or clonidine. and i think you would have noticed some descent benefits, probably if BP was biggest concern, i would have saved my Xanax and just taken .2-.3mg clonidine. but that's just me. In addition, im guessing the lightheaded feelings are from the clonidine and benzos and what ever else causing you to now have low BP?..... thats my guess at least. altho i know for me either xanax or clonidine on its own is really effective for dealing with over amped feelings, especially clondine in its specific BP effects.