In this morning before I reached class ,suddenly I experienced severe inflammation and pain from the middle to the head of penis but mostly on the head and it forced me to urinate like 2- 3 times and  sweating alot.... It's like there's pain from inside not outside When I went for urination I felt the pain from the lower part of the abdomen also...But after I sat inside the class it started to disappear slowly and now there's no pain but the penis is kind of hot...i felt more inflammation and pain when I walk or run.... What is happening in here???can you prescribed me any medicine???