Acute solvent syndrome occurs when a victim has been exposed to chemicals such as the ingredients in paint thinners, degreasers, and lubricants. Individual chemicals include methylene chloride, trichloroethylene, chlorinated hydrocarbons, aliphatic hydrocarbons, or aromatic hydrocarbons. Common signs and symptoms of acute solvent syndrome include headedness, nausea, mucous membrane irritation, confusion, and chest tighness.