You're Popping Uppers Without Realizing It
The chemicals in some types of asthma pills are related to caffeine, and that could contribute to insomnia and daytime jitters. Medications for other conditions—depression, high blood pressure, heart disease—can have similar effects. Diuretics (also commonly prescribed for high blood pressure) can make you have to go to the bathroom more frequently, which is a major sleep disruptor. To identify what's keeping you up, talk to your doctor about what you're taking and when you're taking it.