At this time, it will also cause dizziness or headache. Generally speaking, if you insist on sitting for about three minutes, this will not happen. It is recommended to go to the hospital for a physical examination and then suddenly stand up. The brain and body are not parallel.

The treadmill takes too long. Please refer to my previous answer. I don't know how long you have been running a treadmill, which will cause head ischemia and then stand. The main factors of headache analysis are these:

Wrong posture. If you make a tablet computer. The number and time of the disc set, but the head is down. After a long time, because the muscles and nerves are involved for a long time, it will cause nerve pain in the cervical spine and the back of the head. The best way is to finish the plate.

It is caused by poor blood flow, in addition, it will be affected by lumbar diseases or varicose veins.

It is necessary to rule out brain organic diseases. High blood pressure can also cause headaches. In addition, there are some mental and neurological factors.