Questions & Answers about Sıcaktan bunalıyorum.
• bunalmak is an intransitive verb meaning “to feel oppressed, stifled, overwhelmed” (mentally or physically).
• bunaltmak is its transitive counterpart, meaning “to oppress or overwhelm someone.”
So in “Sıcaktan bunalıyorum”, you are saying “I am overwhelmed (bunalıyorum) by the heat (sıcaktan),” without naming an external agent.