From last 1 year. I have been trying to lose weight and i have lost like 13-14kgs of weight. Sometime i go for run and sometimes for cycling. But after an intense run(3.5km) or cycle ride(30km). I start having intense fatigue and then start to have fever like symptoms. Symptoms are- chills, weakness, back pain, hips pain, gas problems, constipation. Paracetamol like dolo or crocin doesnot work only nimuslide works but that also for 1-2 days. And fever start coming back again. This has happened with me like 5-6 times this year. And everytime this has happened, i have done a strenous exercise before that. I don't have any sore throat, nose block. I also have a nutrient rich meal after workout like overnight oat meal with tons of dry fruits. While fever i get my blood reports checked. Typhoid was negative. But my platlets were like 5000-6000less than the required platlets. Please help. What should i do?