Diarrhea, loss of appetite, and not being able to absorb calories from your food can make you lose weight. This tea is taken mostly at night to induce a calm sleep. Can cause internal bleeding: Chamomile tea can interact with drugs like warfarin, heparin, and ticlopidine. Weight Loss. This herbal tea can also be a cause for stomach discomfort, nausea, and diarrhea. Learn more about the nutritional needs for ulcerative colitis.. Sores “It has the most earthy fragrance and taste and does wonders for your throat. There are some substances in Rooibos tea that show Estrogenic activity. You can actually feel it 'coating' your throat with its goodness. As such, consuming peppermint even in tea form can cause a variety of problems for these individuals, according to Healthline. This is a partial list of herbs and herbal treatments with known or suspected adverse effects, either alone or in interaction with other herbs or drugs.Non-inclusion of an herb in this list does not imply that it is free of adverse effects. At times it has been known to cause vomiting and nausea. Definitely my favorite herbal tea.” Ruhi S See All Reviews Write A Review Caffeine increases the amount of acid in the digestive process, which can cause pain and nausea, particularly if you are sensitive to caffeine or if you take it on an empty stomach. “Nausea and acid reflux!” — Jordan P. In general, the safety and effectiveness of alternative medicines have not been scientifically proven and remain largely unknown. It takes approximately 6 to 8 hours to produce its effects. The autonomic nervous system regulates digestion, so POTS can cause diarrhea, constipation and bloating, and some people with POTS have gastroparesis. As the medication level drops the stimulant effect will diminish. It seems that you have drink too much tea per day which cause you feel sick. A common cause of stomach irritation from drinking tea is its caffeine content. Certain herbs can cause cramping and diarrhea. Licorice root is also used to treat ulcer symptoms, canker sores and digestive problems, such as acid reflux and indigestion. Love the fact that it comes from environmentally conscious manufacturers. These gastrointestinal conditions are most common amongst those who drink it for the first time. In most people, these symptoms disappear gradually once their body gets adjusted to the safe amounts of this tea… Excessive sweating can occur due to the effects of these berries. Licorice root can act as a soothing agent and expectorant, which could make it useful for reducing phlegm and other upper-respiratory symptoms, says the UMMC, such as sore throat and coughing. If you are taking warfarin medicine, drinking chamomile can cause internal bleeding. Dulcolax is a stimulant laxative used to relieve occasional constipation.The diarrhea effect is a listed side effect and varies with each individual. Overproduction of estrogen will cause … So, drinking tea will increase the possibility of increasing estrogen (or also called female hormone) production. It can cause skin rashes and throat swelling. Pregnant women should be very cautious when having the tea. Certain herbs can cause cramping and diarrhea. Although herbs and natural fiber supplements are often the first choice to relieve constipation and maintain bowel regularity, some products may actually over-stimulate the colon and should be avoided. It can at times cause dizziness or headache if you are not used to having hawthorn in your tea. Develop allergy symptoms: Some individuals who are allergic to pollens should avoid chamomile tea. One of Rooibos tea side effects is that this tea may cause breast cancer. In addition, eating a large meal causes more blood to be redirected to the digestion process, leading to an increase in POTS symptoms. (7)Rose buds: