Weeping blisters on legs, trunk, arms, neck itchy bumps, dry patch skin on back. Weak fatigued, weight loss 10#=3 wks. Blood tests normal?

Get checked soon. Considering your overall fatigue it would be important for you to see a doctor urgently to see if the rashes are related to this fatigue and weight loss. You may be dehydrated and have a blood infection or serious allergic reaction. Good luck.
Workup/Mgt. There are many possible conditions that can cause these symptoms. I would suggest an ESR, CBC, diff and a workup for autoimmune diseases. A virtual consult is available online at: healthtap.com/Dosanjh MD Code; NCYHPZ Your labs can be uploaded so that they can be reviewed with you.