Solvents have different effects on different people.
Some common symptoms of solvent exposure are:

Long term or high level exposure can result in damage to the nervous system.
Symptoms of this can include:

If you think you may be suffering from solvent exposure, complete the questionnaire and follow up with a visit to your doctor.
Make sure when you visit your doctor you give him/her as much information as possible, ie take the completed questionnaire, tell them your occupation, how long you've been working in your industry and the solvents/carcinogen you may have been exposed to.