Simultaneous splitting headaches for two different people

I feel the need to share this in hopes that some one can explain or share a similar experience.

A client of mine was having lunch with me and a business partner of mine around 1:00pm CST in South San Antonio. As I was telling a humorous story related to our work, I all of a sudden experienced a migraine type headache for about five seconds. Both of my temples ached and I felt light headed. It was short lived and the intensity decreased but the headache did not go away until after a few minutes.

At first, I thought I was having a stroke or aneurism. I saw no spots but felt very light headed with my temples very tense.

I figured it was because we were laughing but we had not been laughing hard at all and we had not had our food yet.

After a few minutes, my business partner went to use the rest room and my client says, "Fuck man, I have a bad head ache!" I asked him if it was intense like a migraine and he said yes but only for a few seconds.

Needless to say this intrigued me so I asked exactly when he experienced it. Turns out is was the same time, at the same point of the conversation. We shared our experience and both of us expressed, "Tha fuck just happened?"

Fuckin' weirded me us out. The only thing I can think of is we were close to a closed Air Force base where they still do some government contract work related to animal testing, research type shit.. There were also many trails in the sky today.

Just weird. Kinda spooked me.

Anyone ever experience this or know what it may be? Thanks.