I Am A 30 Year Old 5 Foot 9inch Male

I am a 30 year old 5 foot 9inch male 230 pounds. I have had acl, mcl, and meniscus surgery in December of 2014. I was on bed rest for several months after while on bed rest gained 60 pounds in a year. I do not have hepatitis but while getting my yearly physical the Dr. said my liver count was high and she thought high cholesterol may have been the cause or excessive weight gain. Also my blood sugar was just below border line and I was urged to curve my eating and soda drinking habits. Symptoms are: Sometimes I cant always get an erection while trying to engage in intercourse with my hot girl friend what could cause that? Also I throw up every morning after brushing my teeth, I have night sweats while I am asleep, Sensitive toes to the point where I can barely cut my toe nails. After my December knee surgery I contracted cellulitis/ staff infection was on Bactrum, Leviquin and doxycycline. I took all at the same time for a month to clear the infection. I have dry mouth excessively. Today I had loose bowels and Im extremely concerned at this point.