1) Delved into 2) Dug into 3) Examined deeply 4) Examined thoroughly 5) Felt for the bunk 6) Felt like a doctor 7) Investigated 8) Looked into deeply Found on https://www.crosswordclues.com/clue/probed
probe, probing, probed 1. In surgery, a probe is a slender flexible rod with a blunt end used to explore, for example, an opening to see where it goes. 2. A slender, flexible surgical instrument used to explore a wound or body cavity. 3. An exploratory action, expedition, or device, especially one designed to investigate and obtain information on... Found on http://www.wordinfo.info/words/index/info/view_unit/3582/3