I lied at MEPS. Will they go back and look through my medical records?

Heart murmur is common....6 y/o I am sure at 6 yu didn't have complete understanding. You will be ok

You can pretty much bet on it. At boot camp I saw several admit to being dishonest when enlisting, most were sent home. It depends on what you lied about how bad it will be. I heard people admitting to everything from parking tickets, theft to drug use. Never a good thing to lie on anything dealing with the government.

You lied and now you are worried about the consequences; well, you have proven you cannot be trusted, regardless of the circumstances it is soldiers like you that I do not want in my Army.

Sounds like you were diagnosed 12 years or so ago. You've been advised it wasn't a big deal by the medical professional who diagnosed you, so you had plenty of reason not to consider it worth mentioning. I suspect you're only calling it lying out of nerves. Besides, your heart has likely matured after 12 years. And if they do check your records they'll likely have you get tested anyway. If it does turn out to be a problem, be grateful they found it. But you should get it checked out either way. You don't want to have a heart issue in a critical situation, especially with your fellow troops counting on you.

Sounds like you were diagnosed 12 years or so ago. You've been advised it wasn't a big deal by the medical professional who diagnosed you, so you had plenty of reason not to consider it worth mentioning. I suspect you're only calling it lying out of nerves. Besides, your heart has likely matured after 12 years. And if they do check your records they'll likely have you get tested anyway. If it does turn out to be a problem, be grateful they found it. But you should get it checked out either way. You don't want to have a heart issue in a critical situation, especially with your fellow troops counting on you.

If they found it and you can't get a medical waiver for it you may be outta luck.

I lied that it didn't hurt when the doctor stuck two fingers through my hernia in my grown. But I also ended up not joining

I think you can kiss the Personnel Reliability Program goodbye. Possibly a Secret or higher clearance as well.

Everyone is acting like MEPs will come on rally points to find him; it might not even be his real name, lol.

It's called fraudulent enlistment and can result in a felony conviction.