You should have a long discussion about feeding with your midwife or GP as I cannot give you advice, I can only give you information.
The formula I've given IS what is used in the NHS by paediatricians to calculate infant feeds, and we DO see parents every day who are overfeeding their infants and causing then gastrointestinal discomfort, which leads to crying, which leads to more feeding.....and so it continues in a never ending cycle.
Your midwife and GP know your child's medical history, and can plot their growth and discuss any other symptoms e.g vomiting, constipation, raising knees to stomach, any stool changes e.g mucous/ blood, stool frequency and colour, whether they cry more when lying flat after feeding etc. All the history and symptoms need to be assessed in person by a medical professional in order for them to be able to advise you on a course of action/ treatment.
Please ignore all the wild stories about 'my baby takes this much milk' or ' I weaned my baby at 2 months' type stories as they are either exaggerations the same as ' my baby was walking at 4 months' or ' my child was potty trained at 4 months', and made up by competitive parents who have nothing better to brag about.
Unfortunately it's true that previous generations were weaned much earlier than is now recommended, but research and medical advancements have shown that the intestines of an infant are not developed enough to cope well with solids until 6 months of age. (just as many parents used to smoke in front of their children unaware that it was affecting their childrens health, I even remember showing visitors to the smoking room in hospital and seeing both patients and visitors smoking in the hospital canteen!).
Thankfully, things have progressed since then, and so has the recommended feeding and weaning advice, so please, don't ask mumsnetters for advice, ask your midwife/ health visitor/ GP, as they are the ones who will give you accurate, up to date advice, not old wives tales.
Hopefully you will both settle into a routine with feeds and no longer be worried/ anxious.
All my best wishes to you xx