Morning Run 17K

Hello.
On this morning heading to work after the holidays, I headed out to the running route with a heavy yet light heart haha.
Just like last week, I aimed for a 2K warmup followed by 14K MP, but
I ended up finishing with 8K MP.
I usually eat a banana and soy milk for breakfast, but since I ran out of stock, I ate three mini donuts and went for a run about an hour later. My stomach started feeling uncomfortable around the 5K mark. I tried to push through, thinking it would get better after a while, but I had to stop at 10K.
In the middle of it, my Garmin glitched—my heart rate dropped to the low 120s and then suddenly spiked to 230; it was total chaos lol. Seeing that while my stomach was upset made me feel even more dizzy;
It's a shame, but I'll take it as a good experience and finished off by covering the remaining distance with a jog.