As per your chart, getting the health insights of your son based on your chart would be an approximation. The birth details of your son would be required for the health related study and analysis.
Your chart indicates some health issues for your child, which could be more or less transitory in nature. The current ongoing time is not quite conducive for you till mid of 2023 and from then onwards you could get a sigh of relief.
Vrischika Lagna with the Lagna lord Mars posited in debilitation in the ninth house conjunct Rahu; Sun posited in own sign in the tenth house, which is sixth house from the fifth in the natal chart; Jupiter Maha Dasha ongoing with Saturn Antar Dasha till around mid of 2023.