good on ya LC, don't give up! it might just be some normal fluctuations in weight - my scales told me i weighed 115.2kg yesterday, and they were like 116 the day before! i've been checking daily as an experiment this week and my weights are ALL over the place!it's taught me not to weigh daily i think!
next week you'll probably find you've lost this gain and then some.. andd you'll keep trending down!
you gotta stay in it mentally - you're right, you're doing this for you and you dont want to give up on yourself, ever! you CAN do this hun, keep going