You are so welcome mate.
Tricep extensions puts a huge load on the elbows, unlike dips or close grip benches. Plus, tricep extensions are a single joint exercise and dips and close grip benches are not, imo.
I usually warm up with a close grip bench to lube up the elbows.
Ice the elbow, 20 minutes on, 20 minutes off and take some
ibuprofen and call me in the morning.....lol.
This is just my opinion, you took some time off and felt guilty so you decided to hit it hard to catch up. That is me to a tee.
If you do have joint pains in general, plain gelatin is very good for that. ;)