Hopefully you will get an accurate diagnosis soon. Maybe, NTM maybe just a bad cold. Either way, welcome to the family. Through this site you will find many supporters who can have answers or help with questions for your docs.
According to your symptoms you sound like the NTM type situation. But ONLY a Doc can make this decision. Try to keep well rested and check with your doc. Sometimes a little fresh air and exercise can clear your head.
Best of luck. Hope to hear from you soon regarding a good prognosis.
Again, welcome to the family.