You lifted it onto a garbage can?????
Wow...you ARE stronger than you give yourself credit for.
To check out the bottom of the bottom bracket, I usually stand behind the bike, grab the handlebars, pop up the front wheel (like I'm doing a wheelie) and completely spin the bike until it's upside down, propped up in a tripod position - on the top of the rear wheel and balanced on the handlebars. Just be careful to remove the computer b/f you do it, if you have one. No heavy lifting required.....