Whey protein shakes....

OKAY IMStarting to drink whey chocolate and banana protein shakes and they are freaking amazing:P! how will this change my diet?!?! will I gain weight because my body is getting the protein it needs? lol I got a random burst of energy at mylunch whenI bought one from booster juice nd I started sweating but I was moving around a lot.. lol! Also, what would happen if I had them too much?~ if I like something too much I tend to overdo it..especiallyyyyyyyyyyy if its healthy~ So should I really watch myself with these things ?!

thanks to whoever responds to my question (K)
Whey protein shakes....
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