I am 17, I do not always have issues reading or talking but recently I am jumbling words up more often. I also seem to be having memory problems and infrequent sleeping patterns, for example last week I had two hours sleep over 24 hours, but yesterday I slept a full 13 right through my dinner. I also have knee and hip joint which make click and popping noises at least twice a day, sometimes painfully. I have no idea whether all this is connected or separate and furthermore if it is serious enough to go to a doctor for.
It is hard to say whether everything is connected but you should definitely be seeing a doctor about these ailments. Make an appointment with your pediatrician or family doctor and go over the symptoms that you have presented. Your memory and speech problems could be a result of your irregular sleep patterns but your doctor may send you to a neurologist (specializes in the human nervous system) for some further testing if he/she has any concerns. Same goes with the hip joint and knee pain. If your doctor feels the condition is significant he/she will refer you to an orthopedist (treats disorders of the skeletal system and associated muscles, joints, and ligaments) for further examination.
If you need to find a doctor or sub-specialist and live in northern New Jersey, you can call the Adolescent/Young Adult Center for Health in Morristown 973-971-6475 or the Adolescent/Young Adult Center for Health in Summit at 908-522-5757 for an appointment.