Hi Thank you for posting your query. I have gone through your details and according to my view there are few effective remedies which you can follow easily for gaining weight fast .Weight gain and weight loss depends upon our BMR rate ( basal metabo is rate) so you have to keep your metabolism strong by eating proper balanced food,following proper routine,doing yoga and pranayam to improve your digestion.So here are the remedies for gaining weight Take a tbsp of chyavanprash everyday . Have 1 tbsp of ashwagandha powder with lukewarm milk everyday. Prepare a powder of equal quantities of ashwagandha and shatavari and have 1 tbsp with lukewarm milk twice daily. Boil few almonds,dates and raisins with milk and drink. Have a banana or banana shake twice daily. You can have 1 egg with lukewarm milk. Have high calorie food. Have more dairy products in your diet like cheese,ghee,butter,peanut butter. Take a nap after a noon meal as it helps to increase kapha in the body. Boost up your appetite by walking daily for 30 minutes. Start doing yoga,asanas like sarvangasan,shavasan,yoganidra,bhujangasan under expert guidance. Eat 4 -5 small meals daily. Few ayurvedic preparations are recommended - ashwagandhavaleha,shatavri kalpa, yashtimadhu,kushmanda avaleha. Stay away from stress is also a good way to gain weight. Hope this is useful to you. Wish you best health! Regards Dr.Pallavi.