Just a thread out of pure boredom, what do you think the worst super power to have would be? My bet is with underwater breathing
Having eternal life. You'll see your beloved ones dying one by one. If you get killed by a nuclear bomb, you're still breathing while you're a dust and having a boring life.
To add to that: As time goes on your perception of time will change and everything will go faster for you. Also, you won't be able to learn new stuff and then, at some point in life you'll be drifting in space for eternity.
Onto that space tangent, you could actually go there and not need a spacesuit. You can breathe in the absence of oxygen. Eternal life opens up the possibility of witnessing life from completely difference and extraordinary perspectives. I can live like a fish. I can live in the sun. I can go survive a lethal injection. Hence, eternal life isn't a bad super power and definitely not the worst.
Eternal life just means that you can't die. You can still feel pain so living on the sun would kinda suck.
I was going to mention the pain thing, but now that you have, I'll rebut that claim. Like a human being, you'll learn to adapt to the pain.
Very long penis, because It will never be fully inside and It will break your leg upon getting a boner