Your story reminds me of a situation where I became very ill in a local coffee shop. I was sitting at my table, having gotten up more than once to go to the restroom, each time in there feeling like I was going to pass out. Eventually, after repeatdely putting my head down on the table to try to stem the vertigo, another middle aged woman at a nearby table asked me if I was okay. I told her I wasn't. Long story short: Eventually she came and sat with me in my car, me lying down in the back seat waiting to feel okay enough to drive home. Her help was greatly appreciated. On the other hand, in spite of my obvious distress, not one other person in the place, including staff, noticed a woman alone who was clearly ill in some way.