Too much of something

."Too much of something isn't good for you."

Is this sentence ambiguous?
One meaning
a. Too much of anything isn't good for you.
Second meaning:
b.Too much of a specific thing isn't good for you.

I went to the doctor and he told me that too much of something wasn't good for me, but I was so drunk I don't remember what it was.

I am not sure it could mean (a) actually. Why would one use 'something' instead of 'anything'?

Many thanks.