Your baby is definitely underweight for his age.He is being affected by your problems at home. He is always sick. He is demanding attention because he is feeling insecure and is restless when sleeeping.He may be teething but it is possible that something else is worrying him now such as a possible ear infection. It would be best to ask your doctor to see him just to be sure that he does not have an illness now. Do not worry about him not crawling yet. Most babies only crawl at 10 months.
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