Potential side effects from glyphosate include:
Irritation of the skin or eyes
Nasal or throat irritation
Chemical burns in the throat and mouth
An increase in saliva
Gastrointestinal issues like nausea, vomiting, and diarrhea
Of course, these side effects pale in comparison to the more serious danger of developing cancer from exposure to a probable human carcinogen. The Roundup lawsuits currently being pursued are on behalf of users who developed cancer, rather than these annoying but short-term side effects.