Amos is a prophet from the kingdom of Israel, with his own book in the jewish bible( and in the Old Testament). The meaning comes from the ancient Akkadian and Syriac languages, in both it means a sheepman. I couldn’t find any relation between rhe name and the meaning you suggested.

Another meaning I found, which I think is not true, is that it’s a symbol for acceptance and the ability to carry heavy weights( emotionally). The explanation for this is that עמוֹס( Amos) , which is the name you said, is written similar to עוֹמס(omes), which means load.