It's been such an epidemic lately of these posts and it will be closed as soon as a mod sees. For the nth time NOBODY can tell you if you've overdosed or if you're close to. One, because we aren't medical professionals for the most part. Two, even medical professionals cannot tell from an internet post. Three, there are far too many variables. A better phrasing could've been what are the signs of a potential od etc. That would be in the interest of harm reduction. This post currently is a wide open door to liability issues.
Who knows what your "Sack" looked like in terms of quantity and quality. If you're typing on a keyboard coherently than chances are (operative word chances)you're not overdosed. It sounds like a panic attack to me, an untrained average user. If you're concerned dude go seek medical attention, not the responses of utter internet strangers.
not being hard man, but you gotta think about it from all sides involved. I wish you the best brother.