Smoking Cigarettes, Dry Tongue, Red Bumps On Back Of Tongue, White And Clumpy Tongue. What Could This Be?

Question : Hello. I am a healthy person. I take care of myself, although I do smoke cigarettes. I smoke about 3 -4 a day if that. I am experiencing dry tongue, two red bumps on the back of my tongue. Also, My tounge is white and clumpy towards the back of the tongue. The front of my tongue has a smoother white look to it. I have been experiencing this for 6 days. My throat was dry for the first three days but has since felt fine. I have rinsed my mouth with baking soda and water. I also have place coconut oil on my tongue as well for the past 2 days. Since I have used the baking soda and coconut oil, my tongue feels more dry. Other than that I do not feel any discomfort. What could this be. Should I see a doctor or could I take care of this with home remedies? My fiance has been experiencing a dry scratchy throat for the past three weeks. About a month ago he had thrush. He received an antifungal medicine from doctor. He has seen a doctor for his recent discomfot and they have not discovered the cause yet. They have ran blood tests but we have not heard the results yet. Could I have caught something from him? If so what does it sound like?
Thank You.

Hi! Thank you!