Sure sounds like it could be the stress or the new med or both. Here are the side effects of Venlafaxine (Effexor)


"Possible side effects
Summary More details
Call your doctor right away if you notice any of these side effects:

Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

Anxiety, restlessness, fever, sweating, muscle spasms, nausea, vomiting, diarrhea, seeing or hearing things that are not there

Blistering, peeling, red skin rash

Chest pain, cough, trouble breathing

Confusion, weakness, and muscle twitching

Eye pain, vision changes, seeing halos around lights

Fast or pounding heartbeat

Feeling more excited or energetic than usual

Headache, trouble concentrating, memory problems, unsteadiness

Seizures

Trouble sleeping, nervousness, unusual dreams

Unusual behavior, thoughts of hurting yourself or others

Unusual bleeding or bruising

If you notice these less serious side effects, talk with your doctor:

Dry mouth

Headache

Mild nausea, constipation, vomiting, loss of appetite, weight loss

Sexual problems

Sleepiness or unusual drowsiness

If you notice other side effects that you think are caused by this medicine, tell your doctor.

Call your doctor for medical advice about side effects."

I hope you find some relief. I understand the stress with your mother. My mother has been through some situations this past month and the stress is tough.

My best to you.