These could definitely be pregnancy symptoms, but they can also be symptoms of other issues. Needing to use the bathroom shortly after eating can, for instance, be a sign of acid reflux or irritable bowel syndrome. It can also simply be a sign of a mild stomach bug.
If you haven't taken a home pregnancy test yet, then you should definitely do that. That way you can move forward knowing whether or not you're pregnant. If your symptoms persist make sure to let your doctor know so they can help you find a treatment plan.