I've been gone several months and it was at 11 USD. It's now at 73 USD.
Been rising pretty high since that bubble "a few" years ago
Haven't you heard? Bitcoin is a Ponzi scheme devised by Libertarians and other Terrorists to launder drug and kiddie porn money and it serves no purpose other than speculation.
If you still own any, sell them quickly while they're still worth more than a penny.
Edit: I forgot to mention that evil Bitcoin miners are destroying the planet. Sell, sell, sell.