Is there a difference between inflamed lymph nodes & general glands? I have puffy glands in my upper thighs, armpit, behind knees but no sign of nodes

Lymphadenopathy. Your question is difficult to interpret. Don't know what you are distinguishing between "glands" and "nodes". These need to be seen and examined by a doctor in order to be correctly diagnosed. Good luck.
Go get a medical exa. Without a medical exam, we can not tell you what you are feeling. So go have a doctor check your glands(lymph nodes). You would not be able to feel any other glands like you have said " general glands".