Answer
Dear Mrs Tahir
For the baby give him fiber rich foods like weetabix, peas, and the likes. About irritation feeling linked with teething I suggest you buy him a homeopathic camilia. Research says it's highly effective, and has zero side effects. You can also hand him a cool spoon or a rubber teething ring.
About your weight loss problem you need to eat prudently. Have more fiber, and protein. Do 60 minutes walk daily. Eat in moderation from the foods group I have written before. It will pump up your metabolism, and provide you satiety for longer time period.
All the best