Is it safe to send text messages when it thunders?

There is nothing wrong with SMS, which I experienced personally. Last year, when there was a thunderstorm, I went home by bus, and I kept texting. There was a lot of thunder and nothing happened. At this time, I made another phone call, and suddenly there was a loud thunder, and I felt my scalp tighten. At this time, my mobile phone automatically hung up. Maybe my cell phone antenna is too long.