Being that I am an elementary school teacher, I had to get in on this and classify this post (label the parts). A noun names a person, place, thing, or idea. The nouns in this post are: husband, therapist, and nouns is also used as a noun here because it is a direct object to the verb "hear what?" so it is a thing. My count is 3 nouns.

Since a pronoun takes the place of a noun, she actually used a lot more nouns than it appears. I count 11 pronouns. I only teach at a 3rd grade level, so I may not have gotten all of this correct. I did have my 18 year old daughter check for me.

You see what I just did? I completely deflected from the topic of this thread. Classifying this sentence has nothing to do with why I can't talk in a session. This is what my therapist says I do all the time. I avoid and deflect. I try my darndest to chase rabbits and get her so off topic of the real issue that it takes us in a whirlwind of nothingness to get back to why I am not talking in the first place!

Every sentence must contain a noun or a pronoun. So, nouns are common if you count pronouns in the sentence.