Sadvaidya Shunti Churna, indeed, leverages the warming and digestive properties of ginger (shunti), which is a well-regarded remedy in the Siddha-Ayurvedic tradition for enhancing digestive fire or agni. Difficulty with digestion typically points towards an imbalance, often involving weak agni and maybe excess kapha or vata, which could be causing the bloating and pain. A key step here is how you take the churna to actually benefit from it, as the method and timing can significantly influence its effectiveness.
Given your symptoms, taking Sadvaidya Shunti Churna about 15-30 minutes before meals may help in preemptively addressing bloating, as it prepares your digestive system to handle the food better. Start with around 1/4 to 1/2 teaspoon mixed with a bit of warm water or honey to further stimulate agni. Honey has a unique property to balance doshas, making it an ideal carrier in this context.
However, if neither the churna nor other dietary changes yield improvements, consider that your symptoms might be indicate of a more serious condition, underscoring the importance to seek professional medical advice. Undiagnosed stomach issues can lead to prolonged distress if not addressed appropriately.
Observe your diet closely; try to minimize heavy, fried, or very cold foods, which may be aggravating your symptoms. Make sure to eat at regular intervals without skipping meals to maintain steady digestion, which can prevent vata disturbance. Simple integrations like sipping warm water or herbal teas can also subtly support digestion throughout the day. If symptoms persist or worsen, consulting a professional is warranted to exclude potential complications.



