I agree with what folks have already posted and I have an idea to add that has worked for me. Sometimes it really works for me to notice the thoughts, tell myself something like "Oh there that is again", and then practice distracting myself by doing something else.

Also I've noticed that sometimes, not always, I have thoughts like those or other uncomfortable ones especially when I need to eat, get more sleep, walk away from stress, or do other nurturing things for myself.