Sudden inability to speak. Motions.

I was speaking and i suddenly couldn't speak for 3-4 seconds but then i could speak again. Initially I thought I was having a panic or confusion thing because I was talking to a person I'm not on good relations with. But my heart wasn't racing or any other symptoms so I'm concerned. We were having a normal conversation related to work. I was able to speak clearly before and after. I was too aware of it and it lasted too long to be panic or confusion. If it was confusion I would be spluttering out flusteredly mixing my words or something but it was more like I had lost the ability to speak. I have been under a lot of stress lately and was using screen for a couple of hours before this happened. Also, I have JME and have been taking medicine for about 5 years. I take Britzilam 50 two times a day to manage it. Before this incident I missed a dose yesterday morning. I have also been taking metrogyl, zifi and bacillus clausi spore suspension to manage a gut infection/loose motions.