Can you overdose by smoking to much weed. I've been smoking weed alot lately ever since.?

I once had the pleasure of watching a young man puke his guts out for a couple of days in a nearby hospital bed because of Cannabinoid Hyperemesis ("lots of vomiting") Syndrome. It's a rare side effect of long term marijuana use, which sadly had been medically necessary for him.

Also, it is a myth that cannabis is harmless. There is such a thing as a lethal dose of marijuana, such that in 2012-2014 there were 18-22 deaths a year attributed to cannabis alone while in years before legalization took off it was more like 0 to 3.

Is there such a thing as too(!) much weed?

Yes, and you can have a headache for days

You don’t need to die to overdose, that answer is incorrect BUT, weed toxicity is a thing, with chest pain, palpitations, tachycardia etc. look up cannabinoid toxicity. It’s fairly common in edibles, BTW.

If you think you might be overdoing it, you probably are.

There is no such thing as a weed overdose. There has never been a single reported death from marijuana.