There are two reasons for dizziness: 1 and the residual effect of anesthetic. Generally, this drug can be metabolized within 1 hour after operation, but considering that your mother is fat, the drug metabolism may be slow, so it is recommended to observe it for another day. CO accumulation during operation, hypercapnia, that is, hypoxia. This problem can generally be solved by inhaling more oxygen, and you can consult an anesthesiologist for details. Vomiting is a common complication of general anesthesia, which is usually caused by some drugs during surgery. If vomiting is serious, you can consult your doctor whether to use some antiemetic drugs. The general advice is: observe for a period of time, and if it doesn't improve, notify the bed tube doctor or anesthesiologist. If you have any questions, you should report them to the doctor in time, which is much more useful than asking questions from Baidu. Everyone's situation is different, and only the attending doctor knows the details best.