食べすぎて

having eaten too much

→ 食べる
食べ eat + すぎ too much; excessively + て Te-form (conjunctive form)
verb Rare #45,028
having eaten too much The て-form connects this action to what follows, often giving a reason or sequence.
JA: 食べすぎて、お腹が痛い。
EN: My stomach hurts because I ate too much.
Conjugation of 食べる

食べすぎて眠くなってきた。

I ate too much and I'm starting to feel sleepy.

朝から食べすぎておなかパンパン

I’ve eaten too much since this morning, and I’m stuffed.

— Pompo the Cinephile (2021)

食べすぎてお腹が…

I ate too much, and my stomach is...

— ラブ・アクチュアリー (2003)