Was it a panic attack?

I have been diagnosed with anorexia nervosa about 6 months ago and I still struggle a lot. Not so much with food anymore but I find it very difficult still to control my exercise and activity. For each day I have like a ‘set’ number of hours that I need to keep walking for. Well, today (saturday I have 6 hours) we went with my family to this museum and we were given a tour. The rooms were quite small and the tour was going on for over an hour already and we werent doing any walking at all and suddenly I started to feel extremely anxious. I felt as thought I was completely trapped, nothing would ever be ok again, I felt light-headed and as thought I was going completely crazy. Then my body went even more weird and tears just started pouring down my face and I couldnt even control it. I couldnt talk at all and I felt so scared and in such a panic that I literally thought it was the end of everything, so I just run out of the room. Later I was thinking, do you think I was having a panic attack?