I have had an itchy, burning, stingy rash on my chest, arms (that look like round bites), hips, right rib cage and a few behind my knees and ankles.

Itchy burning rash. In a new bed? could be bed bugs, or could be eczema( hydrocortisone cream) , psoriasis(cortisone or systemic meds), fungal ( may respond anti-fungal cream,) or pitryiasis rosea -a viral infection that resolves in 6-8 weeks. If traveled to South America , Caribbean could be chikungunya. f/u/ w/ dermatology.

https://www.aad.org/public/diseases/rashes/pityriasis-rosea#overview.