@MrValentine @DexterZ
Thank you very much both of you! Really appreciate that.

No, nothing serious. Don’t worry. It was just painful and took a while to heal. It’s still not over but it’s much better than before.
I can tell you what happend, but it sounds boring if you hear it. Actually it was nothing special.
I just tried to rotate-push a 60kg washing machine on rubber pads into its final position. By that I also pushed out a bundle of nerves out of my back. Yeah, not just 1 nerve… It was a whole bundle…
My back started to swell and every single move hurt alot. Even doing nothing hurt and breathing. After the initial day my left hip suddenly started to hurt even more than my back. Both the bundle of nerves in my back and in my left hip started to inflame.
Yeah, 4 weeks of pain and literally lying in the bed was all what was possible for me. That sucked alot, bacause I am an active person normally.
However, after the 4 weeks I went for a physio-therapy because I could’t lift my left leg higher than about 3-5 cm. It was nearly locked in position.
Now after all that time, i’m feeling great again. Well, great is maybe a bit exaggerated, but it’s much better than before. Just a bit pain and full movement capabillities.
But I need to do things slowly to not put things under
unnessecary stress. This means I shouldn’t sit or stand for a long time. On the other hand I need to train the muscles there to strengthen them to hold the nerves in position.
In the moment I have also the problem that I am moving to a different location, but I have great people helping me.
I also really appreciate your words. This makes me proud to be a MonoGame member
and it helps to get through this.
I wish you all the best too!
In the meanwhile I will do some smaller projects. Also to get programming practise again for my main project.
However, thank you very much again!
Love you all 
:: Marcel