I've bee doing it whilst at work... If you increase slowly the sickness etc should be minimal. Mind you I'm pretty healthy, I have had one 'vomit' and 'runs' day due to forgetting breakfast (ran out of food
morelike).
I'm at 15 drops level now and in 3rd day. forgot last nights though... I have a sore throat this morning but I had hand reflexology last night so it could have been this...