My taxes jumped over $7000 (from $83.00) when entered my obamacare info. I'm self employed and this can't be right.

That's entirely possible. During the year you may have received subsidies based on what you estimated your income would be. If your income turned out to be significantly higher, those subsidies may have to be repaid, either entirely or in part. It's not uncommon for the subsidies to amount to $7000 a year or more.