oh man! you're giving me a hard time thinkin' hehe.. it's not possible to determine the specific strain but i suggest you go for sativas since they're the strains that can give you the kind of high and feeling you have described. you might just want to give a try mjseedscanada.com coz they got different marijuana varieties.they might just have what you're looking for man.. currently growing big bud i got from them. you might want to try this strain.

this pot strain provides a light and giddy feeling that enables one to be creative and overflow with body energy that can also last for two hours