Hai Doc.i Just Diagnosis With Tb In Abdominal And Lymph

Hai doc.i just diagnosis with tb in abdominal and lymph nod.my lymph nod seen enlarged by enhance ct scan and I had non stop fever,pain in back and abdoman for months.i was warded for 11days, take biosphy of lymph nod at my neck,bone marow sample.they fininaly cncude that.now dr gave me Akurit,namide,etc to start for 9 months.my question is:
1)is abnominal and lymph nod tb contageous
2)how long should I avoid sex with my wife
3)how can I see improvement?
4)how to follow up.
5)what the precaution when I have this tb