Re: Would love some suggestions please
It sounds like you are experiencing some very peculiar symptoms all of a sudden. Can you identify any triggers? Has there been a stressful or traumatic event? Also, have you recently had a course of antibiotics or changed your medication?
I am not sure that magnesium will be a cure all for this as there are several salts and minerals that impact on muscle control etc.
If you have experienced considerable diarrhoea recently or you have had to have a liquid orientated diet then this could trigger a loss of salts and electrolytes that need to replaced.
The other interesting aspect of your symptoms is that you experience it at night. I would suggest that you try changing your eating habits for a couple of weeks and try eating little and often. Restrict this further to something very plain after 6pm. Perhaps try a small helping of porridge or a cup of tea with some rich tea biscuits. Get your main nutrition from the other food you eat earlier in the day.
You mentioned something about fruit and veg in your post. I would strongly recommend that you only eat fruit 20 minutes before you eat anything else and not after a meal.
In summary, I am suggesting that you rejig your eating habits to see if this rectifies things. If you are able to regain control over the situation without adding to your list of medications then all the better.
Good luck. Do let me know how you get on.