The 196 could be a bounce or it could be a spike from the food. Do you know the carb % of the food you gave her? I'm also curious as to how much you gave her. You still want to wait two hours after her last meal before you shoot anything.
Laura, would you mind posting for dosing advice? You've stated that you're planning to shoot 1.25u but as per Wendy (which I agree with) you should only decrease 0.25u, so that would be 1.5u shot. Based on my experience, I believe sticking with the protocol will give you the best opportunity to get Mom-Mom regulated. Why are you thinking to reduce down to 1.25u?
ETA: I don't typically give dosing advice but based on the protocol, I agree with Wendy's recommendation. Additionally, you gave her 1.75u last night which is mostly likely skewing the potentcy of a 1.5u shot. IMHO, it would be best to be as consistent as possible and follow the TRP guidelines as much as possible. However, it's always a good idea to get the advice of several others when possible.