I have an odd question, but I am certain it’s not a coincidence. Every time I make istighfar or dua I start to yawn. Not when I pray, but only when I make dua or istikhfar. Yesterday I said istighfar for 1 hour on my tasbeeh and I was yawning the entire time. Please can you give me an idea of why this might be happening ? I’m not tired or anything of that sort

It could be a possibility that Satan wants to confuse your intention about the Istighfar