Extreme nausea with fourth liver flush

After three successful flushes i felt nausea after the OO (Olive-Oil) and g/fruit. After an hour of horrible flu-like symptoms i was violently sick and spent the rest of the night either shivering or burning up. Since then i've had constant heartburn and also feel a blockage in my lower throat as well as constant backache. Any ideas please? Scared to try another flush!!

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