Fittness/ weight loss !!

Good for you for your work thus far (including medical clearance for exercise). It would help to know what your fitness goals are. If you are OK to weight train, I would suggest adding resistance exercise in to the mix, since at our age, maintaining or increasing muscle is really important (left to our own devices, we lose muscle at an accelerated rate as we age, which greatly increases frailty/falls/general ill health). If you haven't done weight training before, consulting a trainer at your local Y or gym might be helpful - Otherwise, check out on-line for body weight training routines to get started. I am sure folks here might have some good suggestions beyond the "convict conditioning" series.

With your food intake, keep an eye on nutritional content and your deficit (if you need to lose weight) reasonable. Make sure you eat enough fat (essential for nutrient metabolism and body regulation) and protein (essential for muscle maintenance, particularly during a calorie deficit). "Enough" is often a matter of debate, but if you are eating at a deficit, I would suggest at least .8g protein per current body weight, and at least 35g fat/day.

So your daily eating would have protein with every meal - I rely on egg white omelets (salsa is a godsend), leafy green and cruciferous vegetables along with leaner cuts of meat, and fish, greek yogurt & cottage cheese, and fresh fruit within reason, as the basis of my diet, and then add whole grains, starchy veggies as the deficit will allow. Do the full body resistance training 2 or 3 times a week, with a "rest day" in between. Don't be foolish with packing weight on if you decide to use free weights or machines - it's advisable to start lower and find out what is right for you. Injuries can totally derail a good plan.