What does it mean if the water level in my toilet is really low.. but when I flush the toilet the water level comes up so high it almost touches my butt?! I've been trying to fix it.. I've plunged it. And I've asked several people nobody knows

It means you have a blockage in the line. You can continue plunging but may need to auger out the line.

It means you have a blockage in the line. You can continue plunging but may need to auger out the line. how? With what?

Start with a closet auger, found at HD, Lowe's etc. You may have to pull the toilet and rent a cleaning machine or have a professional come and do it for you. The blockage could be anywhere in the drain system.

ma0641's bang on! First purchase a toilet auger,(see image) and auger the bowl, If that doesn't clear the blockage the toilet will have to come up and be snaked by a sewer snake (see image) Good luck, Tom