Resurge is safe to take over a long period of time and you should not experience any side effects while taking Resurge.
Resurge supplements should work well with other supplements.
However if you are taking other supplements with any of the same ingredients that Resurge contains, you may want to stop taking the other supplement while you try Resurge.
You should not experience any GI discomfort or issues with Resurge, nor should you experience insomnia. If you do, you may be sensitive to an ingredient in Resurge that is causing that issue. Or, if you are taking any prescribed medications or other supplements, they may not interact well with Resurge.
You can reach out to your doctor for the physical issue you are experiencing and we would recommend you stop taking Resurge until the issue is resolved.