Hi,
I'm a physician and I also have this intermittent sensation every now and then, without pain, tough. I usually feels it in the back of my head. I think that it may be related with spinal fluid movement within the cisterna magna, which is a huge reservoir of spinal fluid just bellow the back of the head . For some reason, the drainage in this area may become more or less pronounced, triggering this kind of sensation. However, I have never found a scientific explanation for that. So, this is just a hypothesis and may not be taken too seriously. In your case, you also have pain during this episodes, which could be caused by transient stimulation of pain receptors of the duramater (the tissue that covers of the brain and cisterna magna).
Well... let me know if somebody find a better explanation for that!
best,
Diego
That is the air rushing into the bottle to replace the void left by the water rushing out.
It muffles the sound of exhaust rushing out the pipes
The air rushing away from the electric flow.
A sharp snapping sound is typically understood as a brief, high-pitched emission of sound. An example of this kind of sound would be a stick breaking.
There is no B sharp.
Sound and water waves do not have sharp shadows because they can go round corners.
As intermittent means occurring at irregular intervals, a possible sentence could be:Because of the rugged terrain, the signal from the telecommunications tower was intermittent, and the lost hikers had difficulty using their mobile phones to call for help.
You would hear the intermittent sound of the gas jet used to reheat the air in the balloon.
Ventricular fibrillation
bruit
it makes sharp sound
A bad starter