Did i gain weight or lose weight? help,i'm confused?

i'm 13,5'5 and i dont know how much i weigh!!!!!! there's a weighing scale in the bathroom and another one in the guestroom. i use the one in the bathroom and its not digital. it says that i weigh 112 pounds. btw...i used to weigh 127 pounds and i've been exercising a lot,like swimming,yoga,treadmill and aerobics. i've been eating a lot of healthy foods,no junkfood (ewww) and i'm vegetarian and i drink 3 litres of water everyday. my cousin came here on a holiday and stayed in the guestroom. she told me that i lost a lot of weight and she wanted to weigh herself and she used the guestroom weighing scale(not digital too). then i weighed myself too and i weigh 130 pounds???????? i checked the weighing scale if it was on 0 and it was,and i also checked the one in the bathroom and it was also on 0!!!!!!! i'm really confused here?? help? everyone said i lost weight,and i even lost 2 inches on my hips(32 1/2 inches),waist (26 inches) and thighs (18 1/2 inches).......how much do i weigh?