So back in april I was referred to haematology for swollen glands in my neck. They found that it was nothing to worry about so was discharged. Over summer I now have more swollen glands in the back of my neck, armpits and groin. I also think the one in my groin is causing me a lot of hip pain. After going back to the doctors over Christmas I was sent for some bloods. Most were okay but my lactate dehydrogenase was up and so the doctors are referring me back to haematology where I have an appointment next week. Before the doctor seemed to be like if there's nothing in your bloods we won't worry about it but now I've had an urgent 2 weeks referral back to haematology. Does anyone have something similar or have had their lactate dehydrogenase up? I don't know what it means or how significant it is. I also do get really tired and I think I'm having night sweats as I've started getting really hot at night.