Is it okay to suck at blitz chess?

Nothing is wrong to suck at Blitz or any form of chess. That is what life is all about. In due time, you will learn and you will improve...

I can play one good blitz game, then my blood sugar is shot and my heart rate is up and if I keep on playing I will lose over and over.

After I lost all of my first first blitz games on this site I came to the forum looking for answers exactly on this question. I too think I am a reasonable chess player in long games.

In the blitz games I get all nervous and shaky, It feel like I am falling apart. After the game I stay very excited for a long time and I feel like a total looser.

Blitz should be limited to master players, or regarded as a variant.

Yeah I've always had at least a 400 point rating difference. I win tournaments otb, but I lose to patzers in 5 minute. There's no point in playing blitz unless you're going to play blitz tournaments. I decided I'm just going to quit.

i'd argue that blitz is an entirely different beast, not only do you have to beat the clock, you have to be masterful in tactics! get ur opponent into tough positions! make them think! 

Personally, I grew up on having ample time to make moves, so my blitz is way naturally weaker!