Penis warmer than usual. Normal?

Hello, I workout daily and have been under a bit of work pressure lately. Also, I have been sleeping for around 6-7 hours per day. I do not mastrubate on a very regular basis. Probably once a month or once in 2 months. I do not consume pornographic content either. My diet includes a good balance of everything and is a normal Indian diet with fruits and 25g protein supplement on a daily basis. This has never happened before and did happen only once. I went out for running and felt a lot of muscular pain and was not able to do my exercise efficiently. I was feeling extremely stressed out and unable to do any task, neither eat. I realised that my penis seemed to be hotter than usual. When I touched it, it's temperature was more than it usually is like fever. I did not have any burning sensation. I mastrubated and after that the physical stress seemed to reduce a lot. And the temperature that I felt over my penis also reduced in a duration of few hours. Is this phenomenon normal?