Can citalopram 30mg give me energy, good mood and insomnia?

It is possible that the increased dose of medication is causing the "highs" you are experiencing at night. However, it is not common for citalopram to cause insomnia. If you are feeling very active, having strange ideas, or just not feeling right, it would be best to discuss this with your doctor to determine if another medication may be more appropriate for you. If the symptoms pass, then there is no need to worry. However, if you have any further questions, please do not hesitate to ask.