Are these allergic symptoms due to pets or what is this?

I am having this strange problem, i dont have running nose but i do have some mucus so when i blow my nose i get blocked nose, when i breath i dont sense much cold in my chest but at times i feel very slightly difficult to breath, i dont have sour throat but when i cough i get some amount of mucus. This has been going on for a while now it doesnt stop nor it doesnt become severe, at times it increase but only to return back to the mild effect state. other than this i have some itchy sensation at times not all the time, and at the lower region of my Tibia bone in my leg when i press over the bone i can feel slight pain, it was more some time before but now it has gone down a lot, but it has not gone all together. Few month back we brought in some 10 budgies to our house i have been taken care of them all the while, i dont know if i am allergic to these bird, but this is not the first time i am handling pets i have had close contacts with dogs, cats, pigeon, budgies, parrots, african love birds, for years & i am also not allergic to any other thing so far in my life (i am 25 male). I also feel tired at times, lazy, low energy level, not enthusiastic enough to do any work. Few more things to note is that i dont work anywhere i am trying to start my own business and have been staying up in home studying few course to help me start my business, for the past 1 year or so i have been very dormant at home with very low activity, and 1 month back i took up that lemonade diet to boost my energy level but messed it up, it didnt work and i got hands and legs swelled up, it got ok after a week. What happening to me any guess?? plz help me....