I'm really worried about my condition. I got a chest X-ray and have been dealing with a 98.8-degree fever in the evenings along with an irritated throat and mucus. The Mantoux test came back positive at 1012 mm, but the AFB test was negative. My doctor at the government hospital started me on tuberculosis treatment two months ago. Since then, I've gained about 3 kg. Is this normal? Should I be concerned about anything else?