Maybe I am too close to my goats but a few of them have an almost medicinal /odd/sharp smell to their breath when they kindly burp near or in my face.
I noticed it two days ago from one bottle kid and today two more smelled the same.
One of them is acting off as well and just got the "treatment" of oil, a stomach beating, CDT, and a baking soda ball. When a 275 lb goat does NOT want to do something and it is just me, man it is hard! But I got it done and he had nice stomach gurglings, took a giant pee and stop the rolling around he was doing. I have had one case of bloat here and it was not like that, but it was odd for him to be doing that at night in the dark.
Please do not think I am crazy but 3 maybe 4 days ago I was walking the dogs on the ditch and there was a strong smell of almonds in the air. Of course my husband could not smell it, and mocked me

Saying if it was cyanide the oil guys would be dead. Not my fault his nose is faulty
There are drilling yet more oil wells around me in 3 different directions

and there is some type of plant up North that keeps venting some kind of crap in the air that day and again today. Or the ditch guy could have also sprayed something on the weeds and did not notify/ask me even though it is MY property.
My goats do not like baking soda, more often then not it just sits there untouched. Has anyone had this weird rumen smell? What caused it and how did you fix it?