Some examples of how to tell someone else about advice your doctor gave you …

• My doctor told me TO GET more sleep.
• My doctor told me TO EXERCISE more.
• My doctor told me NOT TO SMOKE so much.
• My doctor told me NOT TO EAT so much junk food.

Don’t Say:

• My doctor told me you should get more sleep.  (I, not you)
• My doctor told me to don’t smoke.
• My doctor told me to no eat so much junk food.

More Detail:

• We usually use this type of speech to tell someone what somebody else said to you. It’s known as “reported speech“.