I don't exercise to the point where my shirt gets soaked with sweat. Plus, I exercise in my room..I think pita could be right because I rarely eat 3 meals a day.
"points of stagnation" break up from the blood running through and it dislodges these energy blocks in the immune system. It can feel like sickness like when you had the flu and you felt this inner cold. The body is just detoxifying at a deeper level in the same way as when you are really sick and overloaded. It happens to people when their organs are not fully used to having blood run through them, they can be overweight or if they are thin and have been inactive. I am kind of thin and when I am inactive, at first when I exercise I get these cold chills and sometimes feel nauseous after too and my nose runs, but in time, it goes away, so I know it isn't sweat and cold from outer conditions although that can also happen too. It is not sickness like you are getting sick with a sore throat but the chills, nose run and nausea is similar feeling but your body can fight it off because you are healthy. the body is cleaning itself out deeper. Immune system blocks are common in everyone. They will go away with conditioning and it shows that your body has a stronger blood flow and you did something good. You don't want to overdo it however. If you have a particularly strong reaction, space out the heavier exercise with more time in between the days or light workouts in between if you have any strong nausea, and not just chills/nose run.
It's important to eat enough before exercise, some carbs, ending an hour before and to eat something after to have enough energy. To drink water right before exercise, during a quarter to half a cup every vigorous 15 minutes and drink after more so, or try to drink something, and drink during the day water too. You should eat more too, eat a normal amount so your metabolism is fast enough to turn over and it counters stagnation. Try to eat 3 meals a day or work up to it. Hot sauce is good for breaking up blocks in the system. There are all kinds of hot sauce and hot seaonings to put on foods. Cayenne pepper mixes are great for speeding up the circulation.
It can come from sweat and cold too also but that is another thing which is not likely to leave overtime if you are out in the cold, and you can have the two things combined also like I said.
We all have preservatives, arificial flavors, chemicals, toxins in our system, common drugs, etc. that gets lodged in the body. It is okay, you aren't really sick from just this. You are making yourself healthier and means you should do more exercise and wait til your tolerance gets higher. Learning to use a Heart Rate Monitor will help you not over do the aerobic type of exercise. It is fully worth the hundred dollars for one. You will know when to push yourself more or when to pull back because having symptoms during exercise that aren't joint related do not harm you but you may think you should stop when you don't have to. The joints (besides cramps in the gut area are also harmful) are really the only thing that can really be injured for long periods as cold-like symptoms and muscle pain that is of a normal type heals up and you can press through it. It's important to be honest with whether a pain is muscle or joint related. You might want to tell yourself its not so bad though it is in the joints but then funny how that is, you can have extreme pain all of a sudden in the joints and be out of commisssion for months. That is really what you have to watch. lol off track here. Welp, have fun anyway