Thanks for writing in.
Coming to each investigation:
1. X ray Lumbar spine
shows instability: Means there is some little problem in your in maintaining the back posture.
2. KUB 3 cysts in the left kidney: The cysts size is not mentioned. I believe they are simple cysts and something you should not be worried about.
3. Transvaginal ultrasound: Nabothian follicle is a small benign follicle which is taken as a normal finding. Nothiong to worry for it.
4. Candida infection and diabetes: Yes there appears to be an increasd likelihood of fungal infections in diabetics. In your situation the infection is in the cervix
. This may require treatment with anti fungals in tablet or cream (cream is difficult to apply in your condition).
Your doctor will give you anti fungals to take for a while.
Your husband may not be infected if he has a good immunity. Still he also taking a course of anti fungals will be beneficial to both of you.
Hope this helps.