Hi, All mentioned complaints, most likely are side effects of Medrol. Medrol (methylprednisolone) can depress the immune response and inflammation. Common side effects of Medrol include: •     nausea, •     dizziness, •     stomach pain, •     sleep problems (insomnia), Serious side effects of Medrol include: •     seizures •     high blood pressure •     swelling. As a person begins the course of corticosteroids in the Medrol Dosepak, certain common side effects can occur for example, the person may experience facial flushing during the first few doses of the medication. Flushing causes the skin to become hot and the face will turn red. Medrol raises blood pressure in many people who take it. In high doses of corticosteroids, such as Medrol, the patient may complain of frequent palpitations. Dizziness as well as the associated sensation of light-headedness, may occur during the first part of treatment with the Medrol Dosepak. A metal taste in her mouth you mention have not been reported with Medrol. Medrol can however cause oral thrush which would make your tongue feel furry and sore. Seeing so many side effects, stop Medrol medication, and consult with your family doctor. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Enton Dore, General & Family Physician