A junkie is freaking out from withdrawal symptoms. This middle aged man is crazy, mentally ill, or just needs his next fix.
A middle aged man has a mental breakdown expressing mental illness. He is shaking, acting like things are crawling on him, talking to himself, and convulsing. He could be a junkie.
Addict - Fake dictionary definition of the word with pencil underline
A middle aged man shows signs of withdrawal from a drug or has mental illness in dramatic lighting.