Brown spots and holes only on 2 branches around termianl flovers

Hello,

This things appeared few days ago and they are progressing but only on 2 branches they appeared on. I examined some writings about plant nutrition problems and only thing that is close to this is Ca insufficiency. Anyone knows whats happening. No insects spotted.

Ok here is update. I found few ants on the plant and something exactly like 3rd photo on this page https://www.rollitup.org/marijuana-plant-problems/365210-what-these-aphid-eggs-pics.html on problematic leaves.

Do I have aphids? Can they do this. I am thinking if I have nutrition problem it would be present on more then 2 branches.

Someone please help. I am desperate. I didn't see similar symptoms on entire internet.

Cmon guys? No one saw anything similar? I was looking 1 hour today to spot the pest but nothing there.

Lets try to simplify:
1. Pest or
2. Nutrition

Any response is appreciated. I am worried for my fat buds. If this happened earlier I wouldn't care but now my joy is there it just needs some more time.