Chronic constipation, frequent acidity, and low body weight can indeed be interconnected, often pointing to an underlying imbalance in your doshas, particularly Vata and Pitta. Chronic laxative use can also lead to weakened agni (digestive fire), impacting your metabolism and nutrient absorption, which might contribute to low weight.
Addressing your constipation could start with basti, or herbal enemas, using oil-based mixtures to help lubricate the intestines, aiding in easing bowel movements without causing dependency. A diet rich in fiber, such as cooked vegetables and whole grains, should be incorporated into your daily regimen. Accompany this with warm water consumption through the day, which aids digestion and hydration.
For acidity, avoid hot, spicy, and fried foods which can worsen Pitta imbalance. Including cooling herbs like coriander and fennel in meals should help. Regular intake of a mixture of cumin, coriander, and fennel seeds steeped in water can be sipped during the day to cool the digestive system.
Eating small, frequent meals instead of large ones aids better digestion and absorption of nutrients. Consider triphala churna at night after dinner; this classical Ayurvedic formulation can support bowel movements and improve nutrient assimilation, potentially aiding in weight management.
Focus on stress reduction and consistent sleep, since both can exacerbate digestive issues and weight problems. Practice pranayama and meditation for calming the mind and improving overall balance. However, if symptoms persist or worsen, consult a healthcare professional to rule out more serious conditions.