Nausea and gastrointestinal problems are a fairly common side effect of CBD oil. This can cause vomiting, diarrhea, dizziness, and other symptoms associated with a digestive problem (think about how you would feel after eating something that doesn't agree with you). In part, some people just don't digest CBD oil well. This isn't uncommon with oils and supplements.
In some cases, long-term cannabis use can cause a disorder called cannabinoid hyperemesis syndrome. Symptoms include nausea, vomiting, and cramping abdominal pain that you can temporarily relieve by taking hot showers or permanently stopping cannabis use. Abrupt cessation of cannabis use can cause withdrawal effects and the best method to stop using cannabis should be discussed with your healthcare team. First, understand that an upset stomach due to CBD oil doesn't happen very often.
However, there is a significant percentage of CBD users who report feeling sick after consuming CBD. Another side effect associated with taking more CBD than your body can handle is diarrhea. It is often thought that consuming CBD can increase diarrhea. However, current studies suggest that taking CBD may decrease intestinal motility, or movement in the digestive system, in people with IBS.
Some of the common carrier oils used include MCT oil, emu oil, hemp seed oil, coconut oil, grapeseed and olive oil.