[I am missing many inventory items my shape says item not found when i try to retrieve it]

At first i was having trouble logging in - my orig skin did not show - so I put on SL skin AND SHAPE so that I could see my avatar and rebuild it. Yesterday and today i am  NOW a cloud and  I can no longer get my original shape back.  System says cannot find this item in inventory- I tried - I did what I could understand of checking my connections with router etc - but i noticed that now i am missing aprox 10k items of inventory INCLUDING my shape that has many links from saved outfits but none work.  I am not a tech kind of person and I don't even tho I have been in SL for EVER I can't understand some of the complicated instructions that are given - Yes I still use regular avatar because i like it and have coded it to my exact taste and would like it back- Skin is there SHAPE is gone.  I use Singularity and it never gives me any trouble.  Trouble started about 2 weeks ago when music feeds started to go in and out in every venue.  help? please?

[why are things rezzing so slowly]

Wondering why I am having big delays in chat, changing clothes, transporting.  Been happening for about 2 weeks.  I use SINGULARITY viewer and have not had these problems in a long time.  ( I really like this viewer) Today my skin and clothing wouldnt even rez and i had to keep signing off and on - or click on "appearance" and get skin to show up.  any clues ?- and also keep losing music feed in every venue i go to.  THis is a new problem in the last few weeks but getting worse.  Computer is just a year old -  Changing clothes and transporting is getting to be a real pain.  

[When I log in SL says that it cannot identify my body parts and I become a cloud-every time]

I can recover my bodyparts and clothing but every time I get kicked out of SL or  I log in it makes me do this all over again.  A few others have mentioned this to me but I don't see it listed anywhere.