See a doctor and get a formal diagnosis. Oiling and massage can do more harm than good in certain circumstances. Neither spinach nor potatoes are classed as protein rich foods, please do not give nutrition advice if you have zero knowledge of it - dietetics is a medical specialism.
2a-2c, medium texture, porous/ colour treated. Three years CG. Past bra strap length heading for waist.

CO-wash: Inecto coconut/ Elvive Volume Collagen
Treatments: Komaza Care Matani, coconut/ sweet almond oils, Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss Ultimate Volume, various Elvive
Styler: Umberto Giannini jelly, Boots Essentials gel
Flour sack towel, pixie diffuse or air dry.
Experimenting with: benign neglect