Diet Drinks

Morning,

Just a quick question on diet coke etc. I know there arent any calories in a can of diet coke but its obviopusly not the best thing to be drinking!
I drink 2lt of water each day but I bought a can of diet coke a few days ago because I needed change of €20.

I am feeling really great, no bloating as Im not eating bread and I'm wary that if I drink it , it will bloat me back up again!

So, to drink or not to drink?