Yes .......the other day I was reading an article about reading too much tea and it said that it can move your bones or get a bone disease and in fact it happened to a 46 yr old women who used to drink too much tea
Eating too much or drinking too much of ANYTHING is bad for you. Depends on what you mean by too much though. If you drink tea non stop throughout the day... you might want to get some help. You shouldnt even drink water non stop throughout the day.
Not in moderation. There are many teas that are outstanding for your health, like hibiscus tea, green tea, oolong and many more. They all have many different health benifits. Too much of anything can be bad for you, though.