Your history of food pipe inflammation (esophagitis) and the use of Rekool (rabeprazole) and Zinetac (ranitidine) are closely linked to your digestion. Experiencing fullness, sweating, a fast heart rate, and bathroom urgency specifically after lunch can happen if lunch is your largest meal. This can trigger a strong gastrocolic reflex or a mild dumping-like response, where rapid digestion activates your nervous system. While your medications help protect your esophagus, I highly recommend discussing these episodes with your doctor to check your heart rate and adjust your treatment safely. Eating smaller, slower meals can also help.