welcome aivars! congratulations on your weight loss! 20lb is wonderful. i wonder if you're eating enough? are you eating around 20carbs a day. what about fat and proteing? are you getting enough. how much water do you drink in a day?
as for suppslements, i take a good multi plus calcium, magnesium, zinc, chromium, vitamin c and i use 1/2salt for my potassium. i've abundant energy! i hope we can fix you up!