Hello everyone this is my first time posting in any sort of thread,just registered and signed up to ask for help as I can't sleep without worries(since this is my first time having cockatiels),English isn't my first English and I live in a third world country.I have three cockatiels named Pikachu ,Raichu and Weiss.Pikachu is a yellow male cockatiel, Wiess is a female white cockatiel and Raichu has a same colour palette as pikachu and I assume her to be female as she isn't very vocal like a male cockatiel should.So first things first, I had some health issues with my cockatiels and tried to visit a vet in area(there's no avian specialist vet in my country to my knowledge),Pikachu's feathers looked rough and he likes to chew on his little small feathers even tho I gave them some things to chew such a calcium block,chew toys and some veggies,Weiss had inflammation in her legs and her toes looked to be twice the size of my two other cockatiels and Raichu had several health issues when I bought her(she had almost no feathers and looked malnourished) and I immediately brought her to a vet before(I brought the other two for check up as well and they were all fine) but while raichu also recovered,grown alot of feathers and gained fat,she still hasn't recovered her neck.A vet i visited just yesterday told me that pikachu had no problems,gave weiss some anti inflammatory meds around her toes prescribed medication for her and Raichu needed more nutrition mainly Omega 3 so he told me gave a supplement of omega 3 and supplement of vitamins in their drinking waters once a week or so.After a vet visit,everything was fine when they came back to their cage but starting at night yesterday,Pikachu became alot more friendly and normally he is a very feisty boy(even my cats are scared of him ) who doesn't like being petted or handled(he does come onto my hand when I encourage him to),he also came flying to my head and shoulders and sticked near me alot more now which has never happened before unless I was holding his treats like mealworms or millet sprays.Weiss was normal as usual but seemed alot more sleepy and Raichu was also the usual.Their diets are rotated between dried seeds and veggies each day.They are cage free most of the time and usually go back into the cage themselves when they want to sleep.They also share the same space and room with my Indian Ringneck named Morgan and two cats.Sometimes I bring my Mynah bird from the other room for visit.Please feel free to ask me for details and criticise me if needed.I want to keep them as happy as I can.