hi fuggles : welcome to the forum , shortly after having amalgams placed in your teeth the mercury starts to absorb in all your organs and brain , and will stay in the organs and brain as long as amalgams are in place , but once you remove the amalgams and have them replaced with a non toxic dental material or extracted by a mercury safe dentist ,your body will realize that the mercury source is gone and start to push out the stored mercury from the organs, this is called dumping or detox ,and this can happen within days or can take months to start ,in my case around my third month after amalgam removal my organs started to dump the stored mercury , and how it feels is you will notice your original symtoms before amalgam removal will start to return ,some days you may feel good and other days you will feel like crap it's just like a roller coaster , my worst symtoms were
depession
minor anxiety
joint and lower back pain
brain fog
memory problems
hand tremors
fatigue
,but every one's symtoms are different
so to answer your question ,yes dumping or detox is a very good thing because your body is trying to get rid of mercury that is stored in your organs and brain and hopefully it won't take too long