Goofy question...

For years now I have had this weird feeling in my head. It usually comes right after I eat, and sometimes after strenuous activity. It feels kind of like my head is in a bubble or that I've had one to many drinks. (As you can see I've had a very hard time describing it.) It IS very hard to describe, but for some reason or another it helps when I stand on my head-just for a few seconds. When I explained it to my pediatric neuro years ago-she said she's actual heard complaints of this and that patients were saying sitting on their heads felt right. It only lasts about twenty minutes at a time and I can go months w/o having it. Sometimes I get leg numbness down my left side w it. ( I am missing my left cerebellum.)

I just having a feeling it has to do with my shunt draining, but everything always checks out okay. Does anyone think this sounds familiar? Or am I crazy? haha Thanks!