Warum huste ich, wenn ich schnelle oder intensive Aktivitäten ausführe?

Your signs like high he­at, loose poop, and low energy could be­ from typhoid fever. Typhoid feve­r is caused by a germ called Salmone­lla typhi that can be found in dirty food or water. The cure­ is antibiotics and drinking lots of wate­r. It is important to see a doctor for the right he­lp and cure. 

As a medical expert, I would recommend you to make a gastroenterologist consult about your anal fissure scar issue. Over-the-counter creams may not work and could cause other problems. A gastroenterologist can prescribe appropriate treatment measures including topical medications or surgery if required.
 

Stomach ache is the sudden pain in the belly that you feel. It may be caused by eating quickly, eating spicy food, or feeling stressed. You should try to relax and take slow breaths when these cramps occur. Drinking warm water and putting a hot water bottle on your tummy can help as well. Eating small amounts of bland food while avoiding caffeine might also relieve the cramps.

A gastroenterologist should also be seen if pain under the left or right rib is present, because many gastrointestinal disorders may cause pain as a symptom of pancreatitis, gallbladder disease and gastritis.