Bloatedness at week 5-6 is totally normal because your body's hormones are already slowing down your digestion, so don't be too hard on yourself. Beyond the peppermint tea and water, some mums find that eating smaller meals more frequently helps more than three big meals, and keeping up with your walks is good but maybe don't stress too much about the scale right now since a lot of what you're seeing is just water retention and your uterus starting to expand. Since you're being cautious about your pregnancy, it's probably best to just hold tight until your gynae appointment in two weeks rather than trying new remedies, and your doctor can give you personalised advice based on your health situation then. In the meantime, focus on how you feel rather than the number on the scale, and know that what feels huge to you now will likely settle a bit as your pregnancy progresses.