I experience recurrent episodes of: - Sudden anxiety or uneasiness - Rapid breathing - Heart palpitations (racing or pounding heartbeat) - Lightheadedness with a feeling that I may faint (near-syncope) Pattern: These episodes consistently occur after eating a heavy meal or consuming protein-rich foods such as eggs or chicken or protein shake. Once an episode starts, the symptoms persist continuously for approximately 4–5 days before gradually resolving on their own. After recovery, I feel completely normal until the next episode is triggered. I would like to determine the underlying cause of these recurrent episodes.